./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a4ce0bc2df24452096decdc7e961550a8934d52ee8eab37caec2ef22f016be61 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 22:05:57,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 22:05:57,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 22:05:57,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 22:05:57,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 22:05:57,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 22:05:57,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 22:05:57,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 22:05:57,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 22:05:57,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 22:05:57,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 22:05:57,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 22:05:57,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 22:05:57,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 22:05:57,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 22:05:57,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 22:05:57,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 22:05:57,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 22:05:57,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 22:05:57,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 22:05:57,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 22:05:57,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 22:05:57,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 22:05:57,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 22:05:57,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 22:05:57,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 22:05:57,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 22:05:57,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 22:05:57,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 22:05:57,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 22:05:57,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 22:05:57,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 22:05:57,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 22:05:57,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 22:05:57,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 22:05:57,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 22:05:57,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 22:05:57,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 22:05:57,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 22:05:57,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 22:05:57,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 22:05:57,516 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 22:05:57,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 22:05:57,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 22:05:57,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 22:05:57,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 22:05:57,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 22:05:57,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 22:05:57,551 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 22:05:57,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 22:05:57,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 22:05:57,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 22:05:57,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 22:05:57,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 22:05:57,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 22:05:57,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 22:05:57,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 22:05:57,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 22:05:57,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 22:05:57,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 22:05:57,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 22:05:57,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 22:05:57,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 22:05:57,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 22:05:57,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 22:05:57,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 22:05:57,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 22:05:57,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 22:05:57,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 22:05:57,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 22:05:57,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 22:05:57,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4ce0bc2df24452096decdc7e961550a8934d52ee8eab37caec2ef22f016be61 [2021-11-06 22:05:57,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 22:05:57,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 22:05:57,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 22:05:57,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 22:05:57,817 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 22:05:57,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i [2021-11-06 22:05:57,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da48b5f9e/ee63ec23921a468fa33b4428abf704c0/FLAG6d818afd2 [2021-11-06 22:05:58,637 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 22:05:58,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i [2021-11-06 22:05:58,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da48b5f9e/ee63ec23921a468fa33b4428abf704c0/FLAG6d818afd2 [2021-11-06 22:05:58,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da48b5f9e/ee63ec23921a468fa33b4428abf704c0 [2021-11-06 22:05:58,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 22:05:58,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 22:05:58,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 22:05:58,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 22:05:58,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 22:05:58,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:05:58" (1/1) ... [2021-11-06 22:05:58,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@303c784d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:58, skipping insertion in model container [2021-11-06 22:05:58,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:05:58" (1/1) ... [2021-11-06 22:05:58,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 22:05:58,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 22:06:02,239 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[309910,309923] [2021-11-06 22:06:02,242 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310055,310068] [2021-11-06 22:06:02,242 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310201,310214] [2021-11-06 22:06:02,243 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310366,310379] [2021-11-06 22:06:02,243 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310524,310537] [2021-11-06 22:06:02,244 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310682,310695] [2021-11-06 22:06:02,244 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310840,310853] [2021-11-06 22:06:02,244 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311000,311013] [2021-11-06 22:06:02,245 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311159,311172] [2021-11-06 22:06:02,245 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311298,311311] [2021-11-06 22:06:02,246 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311440,311453] [2021-11-06 22:06:02,246 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311589,311602] [2021-11-06 22:06:02,246 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311728,311741] [2021-11-06 22:06:02,247 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311883,311896] [2021-11-06 22:06:02,247 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312043,312056] [2021-11-06 22:06:02,248 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312194,312207] [2021-11-06 22:06:02,248 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312345,312358] [2021-11-06 22:06:02,248 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312497,312510] [2021-11-06 22:06:02,249 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312646,312659] [2021-11-06 22:06:02,249 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312794,312807] [2021-11-06 22:06:02,250 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312951,312964] [2021-11-06 22:06:02,250 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313100,313113] [2021-11-06 22:06:02,250 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313256,313269] [2021-11-06 22:06:02,251 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313409,313422] [2021-11-06 22:06:02,251 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313555,313568] [2021-11-06 22:06:02,252 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313698,313711] [2021-11-06 22:06:02,252 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313850,313863] [2021-11-06 22:06:02,252 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313996,314009] [2021-11-06 22:06:02,253 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314141,314154] [2021-11-06 22:06:02,253 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314295,314308] [2021-11-06 22:06:02,254 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314446,314459] [2021-11-06 22:06:02,254 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314601,314614] [2021-11-06 22:06:02,254 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314753,314766] [2021-11-06 22:06:02,255 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314908,314921] [2021-11-06 22:06:02,255 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315072,315085] [2021-11-06 22:06:02,255 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315228,315241] [2021-11-06 22:06:02,256 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315392,315405] [2021-11-06 22:06:02,256 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315534,315547] [2021-11-06 22:06:02,257 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315692,315705] [2021-11-06 22:06:02,257 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315859,315872] [2021-11-06 22:06:02,257 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316018,316031] [2021-11-06 22:06:02,258 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316177,316190] [2021-11-06 22:06:02,258 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316326,316339] [2021-11-06 22:06:02,259 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316473,316486] [2021-11-06 22:06:02,259 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316612,316625] [2021-11-06 22:06:02,259 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316775,316788] [2021-11-06 22:06:02,260 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316941,316954] [2021-11-06 22:06:02,260 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317105,317118] [2021-11-06 22:06:02,261 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317270,317283] [2021-11-06 22:06:02,261 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317435,317448] [2021-11-06 22:06:02,261 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317601,317614] [2021-11-06 22:06:02,262 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317766,317779] [2021-11-06 22:06:02,262 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317933,317946] [2021-11-06 22:06:02,262 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318093,318106] [2021-11-06 22:06:02,263 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318255,318268] [2021-11-06 22:06:02,263 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318414,318427] [2021-11-06 22:06:02,264 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318560,318573] [2021-11-06 22:06:02,264 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318703,318716] [2021-11-06 22:06:02,264 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318847,318860] [2021-11-06 22:06:02,265 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318990,319003] [2021-11-06 22:06:02,265 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319134,319147] [2021-11-06 22:06:02,266 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319275,319288] [2021-11-06 22:06:02,266 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319413,319426] [2021-11-06 22:06:02,266 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319571,319584] [2021-11-06 22:06:02,267 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319730,319743] [2021-11-06 22:06:02,267 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319886,319899] [2021-11-06 22:06:02,268 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320035,320048] [2021-11-06 22:06:02,268 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320187,320200] [2021-11-06 22:06:02,268 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320338,320351] [2021-11-06 22:06:02,269 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320487,320500] [2021-11-06 22:06:02,269 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320639,320652] [2021-11-06 22:06:02,269 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320787,320800] [2021-11-06 22:06:02,270 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320940,320953] [2021-11-06 22:06:02,270 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321091,321104] [2021-11-06 22:06:02,271 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321241,321254] [2021-11-06 22:06:02,271 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321388,321401] [2021-11-06 22:06:02,271 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321539,321552] [2021-11-06 22:06:02,272 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321690,321703] [2021-11-06 22:06:02,272 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321838,321851] [2021-11-06 22:06:02,272 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322004,322017] [2021-11-06 22:06:02,273 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322173,322186] [2021-11-06 22:06:02,273 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322340,322353] [2021-11-06 22:06:02,274 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322508,322521] [2021-11-06 22:06:02,274 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322658,322671] [2021-11-06 22:06:02,274 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322805,322818] [2021-11-06 22:06:02,275 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322966,322979] [2021-11-06 22:06:02,275 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323136,323149] [2021-11-06 22:06:02,275 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323298,323311] [2021-11-06 22:06:02,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 22:06:02,309 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 22:06:02,591 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[309910,309923] [2021-11-06 22:06:02,592 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310055,310068] [2021-11-06 22:06:02,592 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310201,310214] [2021-11-06 22:06:02,593 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310366,310379] [2021-11-06 22:06:02,594 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310524,310537] [2021-11-06 22:06:02,597 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310682,310695] [2021-11-06 22:06:02,599 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[310840,310853] [2021-11-06 22:06:02,600 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311000,311013] [2021-11-06 22:06:02,601 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311159,311172] [2021-11-06 22:06:02,601 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311298,311311] [2021-11-06 22:06:02,602 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311440,311453] [2021-11-06 22:06:02,603 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311589,311602] [2021-11-06 22:06:02,603 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311728,311741] [2021-11-06 22:06:02,603 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[311883,311896] [2021-11-06 22:06:02,605 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312043,312056] [2021-11-06 22:06:02,605 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312194,312207] [2021-11-06 22:06:02,606 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312345,312358] [2021-11-06 22:06:02,606 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312497,312510] [2021-11-06 22:06:02,607 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312646,312659] [2021-11-06 22:06:02,607 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312794,312807] [2021-11-06 22:06:02,607 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[312951,312964] [2021-11-06 22:06:02,608 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313100,313113] [2021-11-06 22:06:02,609 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313256,313269] [2021-11-06 22:06:02,609 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313409,313422] [2021-11-06 22:06:02,610 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313555,313568] [2021-11-06 22:06:02,610 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313698,313711] [2021-11-06 22:06:02,614 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313850,313863] [2021-11-06 22:06:02,614 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[313996,314009] [2021-11-06 22:06:02,615 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314141,314154] [2021-11-06 22:06:02,615 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314295,314308] [2021-11-06 22:06:02,615 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314446,314459] [2021-11-06 22:06:02,616 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314601,314614] [2021-11-06 22:06:02,616 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314753,314766] [2021-11-06 22:06:02,617 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[314908,314921] [2021-11-06 22:06:02,617 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315072,315085] [2021-11-06 22:06:02,618 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315228,315241] [2021-11-06 22:06:02,618 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315392,315405] [2021-11-06 22:06:02,618 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315534,315547] [2021-11-06 22:06:02,619 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315692,315705] [2021-11-06 22:06:02,619 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[315859,315872] [2021-11-06 22:06:02,621 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316018,316031] [2021-11-06 22:06:02,621 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316177,316190] [2021-11-06 22:06:02,621 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316326,316339] [2021-11-06 22:06:02,621 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316473,316486] [2021-11-06 22:06:02,622 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316612,316625] [2021-11-06 22:06:02,622 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316775,316788] [2021-11-06 22:06:02,622 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[316941,316954] [2021-11-06 22:06:02,623 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317105,317118] [2021-11-06 22:06:02,623 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317270,317283] [2021-11-06 22:06:02,623 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317435,317448] [2021-11-06 22:06:02,624 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317601,317614] [2021-11-06 22:06:02,625 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317766,317779] [2021-11-06 22:06:02,626 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[317933,317946] [2021-11-06 22:06:02,626 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318093,318106] [2021-11-06 22:06:02,626 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318255,318268] [2021-11-06 22:06:02,627 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318414,318427] [2021-11-06 22:06:02,627 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318560,318573] [2021-11-06 22:06:02,627 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318703,318716] [2021-11-06 22:06:02,628 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318847,318860] [2021-11-06 22:06:02,628 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[318990,319003] [2021-11-06 22:06:02,629 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319134,319147] [2021-11-06 22:06:02,629 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319275,319288] [2021-11-06 22:06:02,629 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319413,319426] [2021-11-06 22:06:02,631 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319571,319584] [2021-11-06 22:06:02,631 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319730,319743] [2021-11-06 22:06:02,634 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[319886,319899] [2021-11-06 22:06:02,635 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320035,320048] [2021-11-06 22:06:02,635 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320187,320200] [2021-11-06 22:06:02,639 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320338,320351] [2021-11-06 22:06:02,640 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320487,320500] [2021-11-06 22:06:02,641 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320639,320652] [2021-11-06 22:06:02,641 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320787,320800] [2021-11-06 22:06:02,641 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[320940,320953] [2021-11-06 22:06:02,642 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321091,321104] [2021-11-06 22:06:02,647 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321241,321254] [2021-11-06 22:06:02,647 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321388,321401] [2021-11-06 22:06:02,648 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321539,321552] [2021-11-06 22:06:02,648 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321690,321703] [2021-11-06 22:06:02,649 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[321838,321851] [2021-11-06 22:06:02,650 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322004,322017] [2021-11-06 22:06:02,650 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322173,322186] [2021-11-06 22:06:02,651 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322340,322353] [2021-11-06 22:06:02,651 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322508,322521] [2021-11-06 22:06:02,652 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322658,322671] [2021-11-06 22:06:02,652 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322805,322818] [2021-11-06 22:06:02,652 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[322966,322979] [2021-11-06 22:06:02,652 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323136,323149] [2021-11-06 22:06:02,653 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/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i[323298,323311] [2021-11-06 22:06:02,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 22:06:02,817 INFO L208 MainTranslator]: Completed translation [2021-11-06 22:06:02,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02 WrapperNode [2021-11-06 22:06:02,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 22:06:02,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 22:06:02,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 22:06:02,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 22:06:02,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (1/1) ... [2021-11-06 22:06:02,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (1/1) ... [2021-11-06 22:06:03,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 22:06:03,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 22:06:03,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 22:06:03,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 22:06:03,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (1/1) ... [2021-11-06 22:06:03,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (1/1) ... [2021-11-06 22:06:03,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (1/1) ... [2021-11-06 22:06:03,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (1/1) ... [2021-11-06 22:06:03,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (1/1) ... [2021-11-06 22:06:03,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (1/1) ... [2021-11-06 22:06:03,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (1/1) ... [2021-11-06 22:06:03,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 22:06:03,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 22:06:03,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 22:06:03,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 22:06:03,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (1/1) ... [2021-11-06 22:06:03,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 22:06:03,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:06:03,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 22:06:03,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 22:06:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 22:06:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 22:06:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 22:06:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 22:06:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 22:06:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 22:06:03,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 22:06:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 22:06:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 22:06:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 22:06:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 22:06:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 22:06:09,388 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L7254: #t~ret898 := main_#res; [2021-11-06 22:06:09,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_6_returnLabel: main_#res := 0; [2021-11-06 22:06:09,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 22:06:09,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_1_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_1_~#ldv_1_resource_pm_message~0.base, ldv_pci_pci_instance_1_~#ldv_1_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_1_~#ldv_1_resource_pm_message~0.base, ldv_pci_pci_instance_1_~#ldv_1_resource_pm_message~0.offset; [2021-11-06 22:06:09,405 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 22:06:09,408 INFO L299 CfgBuilder]: Removed 1226 assume(true) statements. [2021-11-06 22:06:09,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:09 BoogieIcfgContainer [2021-11-06 22:06:09,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 22:06:09,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 22:06:09,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 22:06:09,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 22:06:09,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:05:58" (1/3) ... [2021-11-06 22:06:09,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2f7b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:09, skipping insertion in model container [2021-11-06 22:06:09,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:02" (2/3) ... [2021-11-06 22:06:09,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2f7b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:09, skipping insertion in model container [2021-11-06 22:06:09,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:09" (3/3) ... [2021-11-06 22:06:09,422 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--vme--bridges--vme_ca91cx42.ko.cil.i [2021-11-06 22:06:09,426 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 22:06:09,427 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-06 22:06:09,488 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 22:06:09,493 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 22:06:09,494 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-06 22:06:09,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 997 states, 926 states have (on average 1.3423326133909288) internal successors, (1243), 996 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:09,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-06 22:06:09,531 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:09,532 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:09,532 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:09,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:09,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1600302651, now seen corresponding path program 1 times [2021-11-06 22:06:09,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:09,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750330763] [2021-11-06 22:06:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:09,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:10,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:10,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750330763] [2021-11-06 22:06:10,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750330763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:10,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:10,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:10,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899424274] [2021-11-06 22:06:10,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:10,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:10,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:10,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:10,114 INFO L87 Difference]: Start difference. First operand has 997 states, 926 states have (on average 1.3423326133909288) internal successors, (1243), 996 states have internal predecessors, (1243), 0 states have call successors, (0), 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 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:10,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:10,304 INFO L93 Difference]: Finished difference Result 2898 states and 3614 transitions. [2021-11-06 22:06:10,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 22:06:10,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2021-11-06 22:06:10,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:10,324 INFO L225 Difference]: With dead ends: 2898 [2021-11-06 22:06:10,324 INFO L226 Difference]: Without dead ends: 1866 [2021-11-06 22:06:10,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:10,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2021-11-06 22:06:10,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1307. [2021-11-06 22:06:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 1236 states have (on average 1.2338187702265373) internal successors, (1525), 1306 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:10,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1525 transitions. [2021-11-06 22:06:10,427 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1525 transitions. Word has length 26 [2021-11-06 22:06:10,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:10,427 INFO L470 AbstractCegarLoop]: Abstraction has 1307 states and 1525 transitions. [2021-11-06 22:06:10,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:10,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1525 transitions. [2021-11-06 22:06:10,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-06 22:06:10,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:10,433 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:10,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 22:06:10,433 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:10,436 INFO L85 PathProgramCache]: Analyzing trace with hash -292355447, now seen corresponding path program 1 times [2021-11-06 22:06:10,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:10,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581918296] [2021-11-06 22:06:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:10,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:10,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:10,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581918296] [2021-11-06 22:06:10,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581918296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:10,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:10,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:10,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409315847] [2021-11-06 22:06:10,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:10,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:10,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:10,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:10,578 INFO L87 Difference]: Start difference. First operand 1307 states and 1525 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:10,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:10,634 INFO L93 Difference]: Finished difference Result 1307 states and 1525 transitions. [2021-11-06 22:06:10,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:10,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-11-06 22:06:10,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:10,641 INFO L225 Difference]: With dead ends: 1307 [2021-11-06 22:06:10,642 INFO L226 Difference]: Without dead ends: 1303 [2021-11-06 22:06:10,643 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:10,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2021-11-06 22:06:10,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1303. [2021-11-06 22:06:10,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1234 states have (on average 1.2325769854132902) internal successors, (1521), 1302 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:10,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1521 transitions. [2021-11-06 22:06:10,679 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1521 transitions. Word has length 28 [2021-11-06 22:06:10,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:10,680 INFO L470 AbstractCegarLoop]: Abstraction has 1303 states and 1521 transitions. [2021-11-06 22:06:10,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:10,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1521 transitions. [2021-11-06 22:06:10,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-06 22:06:10,681 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:10,682 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:10,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 22:06:10,682 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:10,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:10,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1780509779, now seen corresponding path program 1 times [2021-11-06 22:06:10,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:10,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099208783] [2021-11-06 22:06:10,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:10,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:10,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:10,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099208783] [2021-11-06 22:06:10,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099208783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:10,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:10,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:10,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243023099] [2021-11-06 22:06:10,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:10,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:10,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:10,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:10,845 INFO L87 Difference]: Start difference. First operand 1303 states and 1521 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:10,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:10,896 INFO L93 Difference]: Finished difference Result 1303 states and 1521 transitions. [2021-11-06 22:06:10,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:10,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2021-11-06 22:06:10,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:10,902 INFO L225 Difference]: With dead ends: 1303 [2021-11-06 22:06:10,902 INFO L226 Difference]: Without dead ends: 1299 [2021-11-06 22:06:10,902 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:10,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2021-11-06 22:06:10,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1299. [2021-11-06 22:06:10,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1232 states have (on average 1.2313311688311688) internal successors, (1517), 1298 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:10,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1517 transitions. [2021-11-06 22:06:10,947 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1517 transitions. Word has length 30 [2021-11-06 22:06:10,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:10,948 INFO L470 AbstractCegarLoop]: Abstraction has 1299 states and 1517 transitions. [2021-11-06 22:06:10,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:10,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1517 transitions. [2021-11-06 22:06:10,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-06 22:06:10,951 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:10,951 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:10,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 22:06:10,952 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:10,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:10,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1672712911, now seen corresponding path program 1 times [2021-11-06 22:06:10,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:10,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006586223] [2021-11-06 22:06:10,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:10,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:11,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:11,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006586223] [2021-11-06 22:06:11,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006586223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:11,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:11,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:11,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963444561] [2021-11-06 22:06:11,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:11,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:11,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:11,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:11,118 INFO L87 Difference]: Start difference. First operand 1299 states and 1517 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:11,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:11,191 INFO L93 Difference]: Finished difference Result 1299 states and 1517 transitions. [2021-11-06 22:06:11,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:11,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2021-11-06 22:06:11,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:11,197 INFO L225 Difference]: With dead ends: 1299 [2021-11-06 22:06:11,197 INFO L226 Difference]: Without dead ends: 1295 [2021-11-06 22:06:11,198 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:11,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2021-11-06 22:06:11,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1295. [2021-11-06 22:06:11,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1230 states have (on average 1.230081300813008) internal successors, (1513), 1294 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1513 transitions. [2021-11-06 22:06:11,242 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1513 transitions. Word has length 32 [2021-11-06 22:06:11,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:11,243 INFO L470 AbstractCegarLoop]: Abstraction has 1295 states and 1513 transitions. [2021-11-06 22:06:11,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1513 transitions. [2021-11-06 22:06:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-06 22:06:11,247 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:11,247 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:11,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 22:06:11,248 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:11,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1159137515, now seen corresponding path program 1 times [2021-11-06 22:06:11,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:11,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507911616] [2021-11-06 22:06:11,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:11,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:11,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:11,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507911616] [2021-11-06 22:06:11,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507911616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:11,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:11,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:11,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665235429] [2021-11-06 22:06:11,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:11,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:11,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:11,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:11,360 INFO L87 Difference]: Start difference. First operand 1295 states and 1513 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:11,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:11,419 INFO L93 Difference]: Finished difference Result 1295 states and 1513 transitions. [2021-11-06 22:06:11,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:11,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2021-11-06 22:06:11,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:11,424 INFO L225 Difference]: With dead ends: 1295 [2021-11-06 22:06:11,424 INFO L226 Difference]: Without dead ends: 1291 [2021-11-06 22:06:11,425 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:11,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2021-11-06 22:06:11,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1291. [2021-11-06 22:06:11,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1228 states have (on average 1.228827361563518) internal successors, (1509), 1290 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:11,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1509 transitions. [2021-11-06 22:06:11,476 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1509 transitions. Word has length 34 [2021-11-06 22:06:11,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:11,476 INFO L470 AbstractCegarLoop]: Abstraction has 1291 states and 1509 transitions. [2021-11-06 22:06:11,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:11,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1509 transitions. [2021-11-06 22:06:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-06 22:06:11,477 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:11,478 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:11,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 22:06:11,478 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:11,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:11,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1534420647, now seen corresponding path program 1 times [2021-11-06 22:06:11,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:11,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921405185] [2021-11-06 22:06:11,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:11,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:11,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:11,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921405185] [2021-11-06 22:06:11,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921405185] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:11,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:11,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:11,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827369796] [2021-11-06 22:06:11,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:11,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:11,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:11,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:11,591 INFO L87 Difference]: Start difference. First operand 1291 states and 1509 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:11,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:11,691 INFO L93 Difference]: Finished difference Result 1291 states and 1509 transitions. [2021-11-06 22:06:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:11,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-11-06 22:06:11,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:11,697 INFO L225 Difference]: With dead ends: 1291 [2021-11-06 22:06:11,697 INFO L226 Difference]: Without dead ends: 1287 [2021-11-06 22:06:11,698 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:11,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2021-11-06 22:06:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1287. [2021-11-06 22:06:11,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1226 states have (on average 1.227569331158238) internal successors, (1505), 1286 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:11,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1505 transitions. [2021-11-06 22:06:11,754 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1505 transitions. Word has length 36 [2021-11-06 22:06:11,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:11,755 INFO L470 AbstractCegarLoop]: Abstraction has 1287 states and 1505 transitions. [2021-11-06 22:06:11,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:11,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1505 transitions. [2021-11-06 22:06:11,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-06 22:06:11,755 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:11,756 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:11,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 22:06:11,756 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:11,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:11,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1404257283, now seen corresponding path program 1 times [2021-11-06 22:06:11,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:11,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436818574] [2021-11-06 22:06:11,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:11,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:11,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:11,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:11,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436818574] [2021-11-06 22:06:11,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436818574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:11,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:11,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:11,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050788612] [2021-11-06 22:06:11,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:11,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:11,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:11,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:11,890 INFO L87 Difference]: Start difference. First operand 1287 states and 1505 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:11,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:11,953 INFO L93 Difference]: Finished difference Result 1287 states and 1505 transitions. [2021-11-06 22:06:11,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:11,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2021-11-06 22:06:11,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:11,958 INFO L225 Difference]: With dead ends: 1287 [2021-11-06 22:06:11,958 INFO L226 Difference]: Without dead ends: 1283 [2021-11-06 22:06:11,959 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2021-11-06 22:06:12,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283. [2021-11-06 22:06:12,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1224 states have (on average 1.2263071895424837) internal successors, (1501), 1282 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1501 transitions. [2021-11-06 22:06:12,015 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1501 transitions. Word has length 38 [2021-11-06 22:06:12,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:12,015 INFO L470 AbstractCegarLoop]: Abstraction has 1283 states and 1501 transitions. [2021-11-06 22:06:12,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:12,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1501 transitions. [2021-11-06 22:06:12,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 22:06:12,016 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:12,016 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:12,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 22:06:12,017 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:12,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:12,017 INFO L85 PathProgramCache]: Analyzing trace with hash -329650918, now seen corresponding path program 1 times [2021-11-06 22:06:12,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:12,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067685791] [2021-11-06 22:06:12,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:12,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:12,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:12,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:12,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067685791] [2021-11-06 22:06:12,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067685791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:12,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:12,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 22:06:12,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595161684] [2021-11-06 22:06:12,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 22:06:12,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:12,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 22:06:12,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:12,188 INFO L87 Difference]: Start difference. First operand 1283 states and 1501 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:12,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:12,358 INFO L93 Difference]: Finished difference Result 2700 states and 3134 transitions. [2021-11-06 22:06:12,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 22:06:12,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2021-11-06 22:06:12,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:12,364 INFO L225 Difference]: With dead ends: 2700 [2021-11-06 22:06:12,364 INFO L226 Difference]: Without dead ends: 1448 [2021-11-06 22:06:12,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 22:06:12,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2021-11-06 22:06:12,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1283. [2021-11-06 22:06:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1224 states have (on average 1.2148692810457515) internal successors, (1487), 1282 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:12,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1487 transitions. [2021-11-06 22:06:12,476 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1487 transitions. Word has length 39 [2021-11-06 22:06:12,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:12,477 INFO L470 AbstractCegarLoop]: Abstraction has 1283 states and 1487 transitions. [2021-11-06 22:06:12,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:12,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1487 transitions. [2021-11-06 22:06:12,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 22:06:12,478 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:12,478 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:12,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 22:06:12,478 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:12,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:12,479 INFO L85 PathProgramCache]: Analyzing trace with hash -329591336, now seen corresponding path program 1 times [2021-11-06 22:06:12,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:12,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199433365] [2021-11-06 22:06:12,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:12,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:12,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:12,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:12,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199433365] [2021-11-06 22:06:12,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199433365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:12,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:12,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 22:06:12,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288523730] [2021-11-06 22:06:12,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:12,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:12,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:12,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:12,586 INFO L87 Difference]: Start difference. First operand 1283 states and 1487 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:12,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:12,752 INFO L93 Difference]: Finished difference Result 1451 states and 1655 transitions. [2021-11-06 22:06:12,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 22:06:12,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2021-11-06 22:06:12,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:12,758 INFO L225 Difference]: With dead ends: 1451 [2021-11-06 22:06:12,758 INFO L226 Difference]: Without dead ends: 1437 [2021-11-06 22:06:12,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:12,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2021-11-06 22:06:12,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1269. [2021-11-06 22:06:12,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1217 states have (on average 1.2046014790468365) internal successors, (1466), 1268 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1466 transitions. [2021-11-06 22:06:12,843 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1466 transitions. Word has length 39 [2021-11-06 22:06:12,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:12,843 INFO L470 AbstractCegarLoop]: Abstraction has 1269 states and 1466 transitions. [2021-11-06 22:06:12,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1466 transitions. [2021-11-06 22:06:12,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-06 22:06:12,844 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:12,844 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:12,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 22:06:12,845 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:12,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:12,845 INFO L85 PathProgramCache]: Analyzing trace with hash -871315711, now seen corresponding path program 1 times [2021-11-06 22:06:12,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:12,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887848426] [2021-11-06 22:06:12,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:12,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:12,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:12,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887848426] [2021-11-06 22:06:12,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887848426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:12,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:12,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:12,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209306657] [2021-11-06 22:06:12,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:12,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:12,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:12,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:12,950 INFO L87 Difference]: Start difference. First operand 1269 states and 1466 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:13,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:13,032 INFO L93 Difference]: Finished difference Result 1269 states and 1466 transitions. [2021-11-06 22:06:13,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:13,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-06 22:06:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:13,037 INFO L225 Difference]: With dead ends: 1269 [2021-11-06 22:06:13,038 INFO L226 Difference]: Without dead ends: 1265 [2021-11-06 22:06:13,038 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:13,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2021-11-06 22:06:13,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2021-11-06 22:06:13,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1215 states have (on average 1.2032921810699588) internal successors, (1462), 1264 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:13,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1462 transitions. [2021-11-06 22:06:13,114 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1462 transitions. Word has length 40 [2021-11-06 22:06:13,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:13,114 INFO L470 AbstractCegarLoop]: Abstraction has 1265 states and 1462 transitions. [2021-11-06 22:06:13,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:13,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1462 transitions. [2021-11-06 22:06:13,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 22:06:13,115 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:13,115 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:13,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 22:06:13,116 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:13,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash -556219319, now seen corresponding path program 1 times [2021-11-06 22:06:13,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:13,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963255966] [2021-11-06 22:06:13,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:13,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:13,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:13,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963255966] [2021-11-06 22:06:13,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963255966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:13,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:13,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 22:06:13,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346741773] [2021-11-06 22:06:13,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 22:06:13,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:13,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 22:06:13,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 22:06:13,225 INFO L87 Difference]: Start difference. First operand 1265 states and 1462 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 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) [2021-11-06 22:06:13,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:13,348 INFO L93 Difference]: Finished difference Result 2471 states and 2856 transitions. [2021-11-06 22:06:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 22:06:13,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 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 [2021-11-06 22:06:13,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:13,353 INFO L225 Difference]: With dead ends: 2471 [2021-11-06 22:06:13,353 INFO L226 Difference]: Without dead ends: 1237 [2021-11-06 22:06:13,355 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 22:06:13,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2021-11-06 22:06:13,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1237. [2021-11-06 22:06:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1194 states have (on average 1.1834170854271358) internal successors, (1413), 1236 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:13,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1413 transitions. [2021-11-06 22:06:13,429 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1413 transitions. Word has length 42 [2021-11-06 22:06:13,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:13,430 INFO L470 AbstractCegarLoop]: Abstraction has 1237 states and 1413 transitions. [2021-11-06 22:06:13,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 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) [2021-11-06 22:06:13,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1413 transitions. [2021-11-06 22:06:13,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 22:06:13,431 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:13,431 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:13,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 22:06:13,431 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:13,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:13,432 INFO L85 PathProgramCache]: Analyzing trace with hash 184426116, now seen corresponding path program 1 times [2021-11-06 22:06:13,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:13,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464082204] [2021-11-06 22:06:13,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:13,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:13,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:13,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464082204] [2021-11-06 22:06:13,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464082204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:13,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:13,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:13,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974526747] [2021-11-06 22:06:13,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:13,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:13,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:13,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:13,543 INFO L87 Difference]: Start difference. First operand 1237 states and 1413 transitions. Second operand has 4 states, 4 states have (on average 10.5) 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) [2021-11-06 22:06:13,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:13,623 INFO L93 Difference]: Finished difference Result 1237 states and 1413 transitions. [2021-11-06 22:06:13,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:13,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) 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 [2021-11-06 22:06:13,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:13,629 INFO L225 Difference]: With dead ends: 1237 [2021-11-06 22:06:13,629 INFO L226 Difference]: Without dead ends: 1233 [2021-11-06 22:06:13,630 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:13,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2021-11-06 22:06:13,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1233. [2021-11-06 22:06:13,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 1192 states have (on average 1.1820469798657718) internal successors, (1409), 1232 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:13,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1409 transitions. [2021-11-06 22:06:13,700 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1409 transitions. Word has length 42 [2021-11-06 22:06:13,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:13,700 INFO L470 AbstractCegarLoop]: Abstraction has 1233 states and 1409 transitions. [2021-11-06 22:06:13,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) 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) [2021-11-06 22:06:13,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1409 transitions. [2021-11-06 22:06:13,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-06 22:06:13,701 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:13,701 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:13,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-06 22:06:13,701 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:13,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:13,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1140041320, now seen corresponding path program 1 times [2021-11-06 22:06:13,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:13,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50383132] [2021-11-06 22:06:13,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:13,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:13,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:13,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50383132] [2021-11-06 22:06:13,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50383132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:13,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:13,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:13,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821036571] [2021-11-06 22:06:13,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:13,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:13,798 INFO L87 Difference]: Start difference. First operand 1233 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:13,880 INFO L93 Difference]: Finished difference Result 1233 states and 1409 transitions. [2021-11-06 22:06:13,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:13,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-06 22:06:13,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:13,885 INFO L225 Difference]: With dead ends: 1233 [2021-11-06 22:06:13,885 INFO L226 Difference]: Without dead ends: 1229 [2021-11-06 22:06:13,886 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:13,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2021-11-06 22:06:13,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2021-11-06 22:06:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1190 states have (on average 1.180672268907563) internal successors, (1405), 1228 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:13,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1405 transitions. [2021-11-06 22:06:13,956 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1405 transitions. Word has length 44 [2021-11-06 22:06:13,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:13,956 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 1405 transitions. [2021-11-06 22:06:13,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:13,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1405 transitions. [2021-11-06 22:06:13,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-06 22:06:13,957 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:13,957 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:13,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-06 22:06:13,957 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:13,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:13,958 INFO L85 PathProgramCache]: Analyzing trace with hash 363251372, now seen corresponding path program 1 times [2021-11-06 22:06:13,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:13,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233034281] [2021-11-06 22:06:13,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:13,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:14,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:14,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:14,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233034281] [2021-11-06 22:06:14,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233034281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:14,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:14,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:14,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224900152] [2021-11-06 22:06:14,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:14,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:14,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:14,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:14,091 INFO L87 Difference]: Start difference. First operand 1229 states and 1405 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:14,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:14,171 INFO L93 Difference]: Finished difference Result 1229 states and 1405 transitions. [2021-11-06 22:06:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:14,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2021-11-06 22:06:14,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:14,175 INFO L225 Difference]: With dead ends: 1229 [2021-11-06 22:06:14,176 INFO L226 Difference]: Without dead ends: 1225 [2021-11-06 22:06:14,177 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:14,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2021-11-06 22:06:14,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1225. [2021-11-06 22:06:14,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1188 states have (on average 1.1792929292929293) internal successors, (1401), 1224 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:14,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1401 transitions. [2021-11-06 22:06:14,252 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1401 transitions. Word has length 46 [2021-11-06 22:06:14,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:14,252 INFO L470 AbstractCegarLoop]: Abstraction has 1225 states and 1401 transitions. [2021-11-06 22:06:14,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1401 transitions. [2021-11-06 22:06:14,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-06 22:06:14,253 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:14,253 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:14,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-06 22:06:14,253 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:14,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:14,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1192421200, now seen corresponding path program 1 times [2021-11-06 22:06:14,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:14,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799018085] [2021-11-06 22:06:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:14,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:14,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:14,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799018085] [2021-11-06 22:06:14,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799018085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:14,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:14,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:14,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786119133] [2021-11-06 22:06:14,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:14,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:14,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:14,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:14,351 INFO L87 Difference]: Start difference. First operand 1225 states and 1401 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:14,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:14,432 INFO L93 Difference]: Finished difference Result 1225 states and 1401 transitions. [2021-11-06 22:06:14,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:14,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2021-11-06 22:06:14,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:14,437 INFO L225 Difference]: With dead ends: 1225 [2021-11-06 22:06:14,437 INFO L226 Difference]: Without dead ends: 1221 [2021-11-06 22:06:14,437 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:14,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2021-11-06 22:06:14,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1221. [2021-11-06 22:06:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1186 states have (on average 1.1779089376053964) internal successors, (1397), 1220 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:14,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1397 transitions. [2021-11-06 22:06:14,510 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1397 transitions. Word has length 48 [2021-11-06 22:06:14,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:14,511 INFO L470 AbstractCegarLoop]: Abstraction has 1221 states and 1397 transitions. [2021-11-06 22:06:14,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:14,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1397 transitions. [2021-11-06 22:06:14,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-06 22:06:14,511 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:14,512 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:14,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-06 22:06:14,512 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:14,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:14,512 INFO L85 PathProgramCache]: Analyzing trace with hash -839290796, now seen corresponding path program 1 times [2021-11-06 22:06:14,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:14,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522746076] [2021-11-06 22:06:14,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:14,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:14,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:14,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:14,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522746076] [2021-11-06 22:06:14,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522746076] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:14,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:14,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:14,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51037243] [2021-11-06 22:06:14,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:14,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:14,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:14,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:14,609 INFO L87 Difference]: Start difference. First operand 1221 states and 1397 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:14,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:14,707 INFO L93 Difference]: Finished difference Result 1221 states and 1397 transitions. [2021-11-06 22:06:14,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:14,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2021-11-06 22:06:14,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:14,711 INFO L225 Difference]: With dead ends: 1221 [2021-11-06 22:06:14,711 INFO L226 Difference]: Without dead ends: 1217 [2021-11-06 22:06:14,712 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:14,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2021-11-06 22:06:14,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1217. [2021-11-06 22:06:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1184 states have (on average 1.1765202702702702) internal successors, (1393), 1216 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:14,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1393 transitions. [2021-11-06 22:06:14,779 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1393 transitions. Word has length 50 [2021-11-06 22:06:14,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:14,780 INFO L470 AbstractCegarLoop]: Abstraction has 1217 states and 1393 transitions. [2021-11-06 22:06:14,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1393 transitions. [2021-11-06 22:06:14,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-06 22:06:14,780 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:14,781 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:14,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-06 22:06:14,782 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:14,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:14,782 INFO L85 PathProgramCache]: Analyzing trace with hash 895601080, now seen corresponding path program 1 times [2021-11-06 22:06:14,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:14,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802338610] [2021-11-06 22:06:14,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:14,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:14,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:14,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:14,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802338610] [2021-11-06 22:06:14,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802338610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:14,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:14,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:14,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167013305] [2021-11-06 22:06:14,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:14,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:14,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:14,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:14,878 INFO L87 Difference]: Start difference. First operand 1217 states and 1393 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:14,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:14,958 INFO L93 Difference]: Finished difference Result 1217 states and 1393 transitions. [2021-11-06 22:06:14,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:14,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-06 22:06:14,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:14,963 INFO L225 Difference]: With dead ends: 1217 [2021-11-06 22:06:14,963 INFO L226 Difference]: Without dead ends: 1213 [2021-11-06 22:06:14,964 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:14,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2021-11-06 22:06:15,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1213. [2021-11-06 22:06:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1182 states have (on average 1.1751269035532994) internal successors, (1389), 1212 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1389 transitions. [2021-11-06 22:06:15,039 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1389 transitions. Word has length 52 [2021-11-06 22:06:15,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:15,041 INFO L470 AbstractCegarLoop]: Abstraction has 1213 states and 1389 transitions. [2021-11-06 22:06:15,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:15,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1389 transitions. [2021-11-06 22:06:15,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-06 22:06:15,042 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:15,042 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:15,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-06 22:06:15,043 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:15,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:15,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1679383420, now seen corresponding path program 1 times [2021-11-06 22:06:15,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:15,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133128751] [2021-11-06 22:06:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:15,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:15,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:15,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133128751] [2021-11-06 22:06:15,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133128751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:15,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:15,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:15,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330219147] [2021-11-06 22:06:15,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:15,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:15,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:15,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:15,187 INFO L87 Difference]: Start difference. First operand 1213 states and 1389 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:15,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:15,279 INFO L93 Difference]: Finished difference Result 1213 states and 1389 transitions. [2021-11-06 22:06:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:15,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2021-11-06 22:06:15,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:15,284 INFO L225 Difference]: With dead ends: 1213 [2021-11-06 22:06:15,284 INFO L226 Difference]: Without dead ends: 1209 [2021-11-06 22:06:15,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:15,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2021-11-06 22:06:15,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2021-11-06 22:06:15,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1180 states have (on average 1.173728813559322) internal successors, (1385), 1208 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:15,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1385 transitions. [2021-11-06 22:06:15,402 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1385 transitions. Word has length 54 [2021-11-06 22:06:15,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:15,403 INFO L470 AbstractCegarLoop]: Abstraction has 1209 states and 1385 transitions. [2021-11-06 22:06:15,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:15,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1385 transitions. [2021-11-06 22:06:15,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-06 22:06:15,406 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:15,406 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:15,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-06 22:06:15,406 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:15,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:15,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1303072357, now seen corresponding path program 1 times [2021-11-06 22:06:15,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:15,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793063504] [2021-11-06 22:06:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:15,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:15,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:15,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793063504] [2021-11-06 22:06:15,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793063504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:15,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:15,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:15,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426456872] [2021-11-06 22:06:15,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 22:06:15,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:15,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 22:06:15,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 22:06:15,523 INFO L87 Difference]: Start difference. First operand 1209 states and 1385 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:15,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:15,660 INFO L93 Difference]: Finished difference Result 2383 states and 2732 transitions. [2021-11-06 22:06:15,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 22:06:15,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2021-11-06 22:06:15,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:15,665 INFO L225 Difference]: With dead ends: 2383 [2021-11-06 22:06:15,665 INFO L226 Difference]: Without dead ends: 1205 [2021-11-06 22:06:15,667 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 22:06:15,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2021-11-06 22:06:15,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1205. [2021-11-06 22:06:15,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1177 states have (on average 1.1707731520815634) internal successors, (1378), 1204 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:15,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1378 transitions. [2021-11-06 22:06:15,751 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1378 transitions. Word has length 55 [2021-11-06 22:06:15,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:15,751 INFO L470 AbstractCegarLoop]: Abstraction has 1205 states and 1378 transitions. [2021-11-06 22:06:15,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:15,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1378 transitions. [2021-11-06 22:06:15,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-06 22:06:15,752 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:15,752 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:15,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-06 22:06:15,752 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:15,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1020031584, now seen corresponding path program 1 times [2021-11-06 22:06:15,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:15,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343311530] [2021-11-06 22:06:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:15,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:15,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:15,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343311530] [2021-11-06 22:06:15,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343311530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:15,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:15,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:15,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243810498] [2021-11-06 22:06:15,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:15,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:15,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:15,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:15,870 INFO L87 Difference]: Start difference. First operand 1205 states and 1378 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:15,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:15,963 INFO L93 Difference]: Finished difference Result 1205 states and 1378 transitions. [2021-11-06 22:06:15,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:15,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2021-11-06 22:06:15,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:15,968 INFO L225 Difference]: With dead ends: 1205 [2021-11-06 22:06:15,968 INFO L226 Difference]: Without dead ends: 1201 [2021-11-06 22:06:15,969 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:15,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2021-11-06 22:06:16,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1201. [2021-11-06 22:06:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1175 states have (on average 1.1693617021276597) internal successors, (1374), 1200 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:16,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1374 transitions. [2021-11-06 22:06:16,068 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1374 transitions. Word has length 56 [2021-11-06 22:06:16,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:16,069 INFO L470 AbstractCegarLoop]: Abstraction has 1201 states and 1374 transitions. [2021-11-06 22:06:16,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:16,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1374 transitions. [2021-11-06 22:06:16,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 22:06:16,070 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:16,070 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:16,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-06 22:06:16,071 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:16,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:16,071 INFO L85 PathProgramCache]: Analyzing trace with hash -2054965021, now seen corresponding path program 1 times [2021-11-06 22:06:16,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:16,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230506464] [2021-11-06 22:06:16,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:16,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:16,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:16,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:16,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230506464] [2021-11-06 22:06:16,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230506464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:16,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:16,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 22:06:16,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391474053] [2021-11-06 22:06:16,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 22:06:16,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:16,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 22:06:16,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:16,192 INFO L87 Difference]: Start difference. First operand 1201 states and 1374 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:16,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:16,363 INFO L93 Difference]: Finished difference Result 2367 states and 2710 transitions. [2021-11-06 22:06:16,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 22:06:16,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-06 22:06:16,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:16,368 INFO L225 Difference]: With dead ends: 2367 [2021-11-06 22:06:16,368 INFO L226 Difference]: Without dead ends: 1197 [2021-11-06 22:06:16,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-06 22:06:16,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2021-11-06 22:06:16,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1197. [2021-11-06 22:06:16,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 1172 states have (on average 1.166382252559727) internal successors, (1367), 1196 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:16,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1367 transitions. [2021-11-06 22:06:16,466 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1367 transitions. Word has length 58 [2021-11-06 22:06:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:16,466 INFO L470 AbstractCegarLoop]: Abstraction has 1197 states and 1367 transitions. [2021-11-06 22:06:16,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1367 transitions. [2021-11-06 22:06:16,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 22:06:16,467 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:16,467 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:16,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-06 22:06:16,468 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:16,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:16,468 INFO L85 PathProgramCache]: Analyzing trace with hash -997603292, now seen corresponding path program 1 times [2021-11-06 22:06:16,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:16,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824676703] [2021-11-06 22:06:16,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:16,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:16,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:16,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824676703] [2021-11-06 22:06:16,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824676703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:16,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:16,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:16,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822172149] [2021-11-06 22:06:16,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:16,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:16,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:16,577 INFO L87 Difference]: Start difference. First operand 1197 states and 1367 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:16,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:16,678 INFO L93 Difference]: Finished difference Result 1197 states and 1367 transitions. [2021-11-06 22:06:16,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:16,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-06 22:06:16,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:16,682 INFO L225 Difference]: With dead ends: 1197 [2021-11-06 22:06:16,682 INFO L226 Difference]: Without dead ends: 1193 [2021-11-06 22:06:16,683 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:16,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2021-11-06 22:06:16,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1193. [2021-11-06 22:06:16,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1170 states have (on average 1.164957264957265) internal successors, (1363), 1192 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:16,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1363 transitions. [2021-11-06 22:06:16,775 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1363 transitions. Word has length 58 [2021-11-06 22:06:16,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:16,776 INFO L470 AbstractCegarLoop]: Abstraction has 1193 states and 1363 transitions. [2021-11-06 22:06:16,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:16,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1363 transitions. [2021-11-06 22:06:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-06 22:06:16,776 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:16,777 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:16,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-06 22:06:16,777 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:16,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:16,777 INFO L85 PathProgramCache]: Analyzing trace with hash -918850808, now seen corresponding path program 1 times [2021-11-06 22:06:16,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:16,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801982916] [2021-11-06 22:06:16,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:16,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:16,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:16,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801982916] [2021-11-06 22:06:16,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801982916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:16,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:16,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:16,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065886599] [2021-11-06 22:06:16,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:16,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:16,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:16,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:16,902 INFO L87 Difference]: Start difference. First operand 1193 states and 1363 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:17,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:17,032 INFO L93 Difference]: Finished difference Result 1193 states and 1363 transitions. [2021-11-06 22:06:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:17,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-06 22:06:17,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:17,036 INFO L225 Difference]: With dead ends: 1193 [2021-11-06 22:06:17,036 INFO L226 Difference]: Without dead ends: 1189 [2021-11-06 22:06:17,037 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:17,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2021-11-06 22:06:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1189. [2021-11-06 22:06:17,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1168 states have (on average 1.163527397260274) internal successors, (1359), 1188 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1359 transitions. [2021-11-06 22:06:17,125 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1359 transitions. Word has length 60 [2021-11-06 22:06:17,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:17,126 INFO L470 AbstractCegarLoop]: Abstraction has 1189 states and 1359 transitions. [2021-11-06 22:06:17,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1359 transitions. [2021-11-06 22:06:17,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-06 22:06:17,127 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:17,127 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:17,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-06 22:06:17,127 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:17,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:17,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1747842636, now seen corresponding path program 1 times [2021-11-06 22:06:17,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:17,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691975378] [2021-11-06 22:06:17,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:17,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:17,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:17,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:17,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691975378] [2021-11-06 22:06:17,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691975378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:17,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:17,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:17,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900846679] [2021-11-06 22:06:17,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:17,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:17,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:17,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:17,234 INFO L87 Difference]: Start difference. First operand 1189 states and 1359 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:17,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:17,340 INFO L93 Difference]: Finished difference Result 1189 states and 1359 transitions. [2021-11-06 22:06:17,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:17,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2021-11-06 22:06:17,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:17,343 INFO L225 Difference]: With dead ends: 1189 [2021-11-06 22:06:17,344 INFO L226 Difference]: Without dead ends: 1185 [2021-11-06 22:06:17,344 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:17,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2021-11-06 22:06:17,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2021-11-06 22:06:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1166 states have (on average 1.1620926243567753) internal successors, (1355), 1184 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1355 transitions. [2021-11-06 22:06:17,444 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1355 transitions. Word has length 62 [2021-11-06 22:06:17,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:17,444 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 1355 transitions. [2021-11-06 22:06:17,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:17,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1355 transitions. [2021-11-06 22:06:17,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-06 22:06:17,445 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:17,445 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:17,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-06 22:06:17,445 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:17,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:17,446 INFO L85 PathProgramCache]: Analyzing trace with hash 344766960, now seen corresponding path program 1 times [2021-11-06 22:06:17,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:17,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319501178] [2021-11-06 22:06:17,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:17,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:17,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:17,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319501178] [2021-11-06 22:06:17,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319501178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:17,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:17,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:17,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014455811] [2021-11-06 22:06:17,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:17,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:17,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:17,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:17,554 INFO L87 Difference]: Start difference. First operand 1185 states and 1355 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:17,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:17,663 INFO L93 Difference]: Finished difference Result 1185 states and 1355 transitions. [2021-11-06 22:06:17,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:17,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-06 22:06:17,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:17,667 INFO L225 Difference]: With dead ends: 1185 [2021-11-06 22:06:17,667 INFO L226 Difference]: Without dead ends: 1181 [2021-11-06 22:06:17,667 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:17,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2021-11-06 22:06:17,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1181. [2021-11-06 22:06:17,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 1164 states have (on average 1.1606529209621994) internal successors, (1351), 1180 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:17,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1351 transitions. [2021-11-06 22:06:17,799 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1351 transitions. Word has length 64 [2021-11-06 22:06:17,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:17,800 INFO L470 AbstractCegarLoop]: Abstraction has 1181 states and 1351 transitions. [2021-11-06 22:06:17,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1351 transitions. [2021-11-06 22:06:17,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 22:06:17,801 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:17,801 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:17,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-06 22:06:17,801 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:17,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:17,802 INFO L85 PathProgramCache]: Analyzing trace with hash 608773620, now seen corresponding path program 1 times [2021-11-06 22:06:17,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:17,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14827639] [2021-11-06 22:06:17,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:17,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:17,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:17,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:17,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14827639] [2021-11-06 22:06:17,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14827639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:17,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:17,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:17,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112527379] [2021-11-06 22:06:17,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:17,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:17,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:17,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:17,908 INFO L87 Difference]: Start difference. First operand 1181 states and 1351 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:18,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:18,017 INFO L93 Difference]: Finished difference Result 1181 states and 1351 transitions. [2021-11-06 22:06:18,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:06:18,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-11-06 22:06:18,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:18,020 INFO L225 Difference]: With dead ends: 1181 [2021-11-06 22:06:18,020 INFO L226 Difference]: Without dead ends: 1071 [2021-11-06 22:06:18,021 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:18,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2021-11-06 22:06:18,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2021-11-06 22:06:18,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1056 states have (on average 1.1723484848484849) internal successors, (1238), 1070 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:18,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1238 transitions. [2021-11-06 22:06:18,114 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1238 transitions. Word has length 66 [2021-11-06 22:06:18,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:18,115 INFO L470 AbstractCegarLoop]: Abstraction has 1071 states and 1238 transitions. [2021-11-06 22:06:18,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:18,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1238 transitions. [2021-11-06 22:06:18,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 22:06:18,116 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:18,116 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:18,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-06 22:06:18,116 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:18,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:18,117 INFO L85 PathProgramCache]: Analyzing trace with hash -600295767, now seen corresponding path program 1 times [2021-11-06 22:06:18,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:18,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502001332] [2021-11-06 22:06:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:18,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:18,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:18,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:18,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502001332] [2021-11-06 22:06:18,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502001332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:18,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:18,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 22:06:18,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56982724] [2021-11-06 22:06:18,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 22:06:18,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:18,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 22:06:18,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:18,265 INFO L87 Difference]: Start difference. First operand 1071 states and 1238 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:20,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:20,809 INFO L93 Difference]: Finished difference Result 2152 states and 2486 transitions. [2021-11-06 22:06:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 22:06:20,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2021-11-06 22:06:20,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:20,814 INFO L225 Difference]: With dead ends: 2152 [2021-11-06 22:06:20,814 INFO L226 Difference]: Without dead ends: 2146 [2021-11-06 22:06:20,815 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-06 22:06:20,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2021-11-06 22:06:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1728. [2021-11-06 22:06:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1728 states, 1713 states have (on average 1.1774664331582019) internal successors, (2017), 1727 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:21,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2017 transitions. [2021-11-06 22:06:21,040 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2017 transitions. Word has length 80 [2021-11-06 22:06:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:21,041 INFO L470 AbstractCegarLoop]: Abstraction has 1728 states and 2017 transitions. [2021-11-06 22:06:21,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2017 transitions. [2021-11-06 22:06:21,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 22:06:21,042 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:21,042 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:21,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-06 22:06:21,043 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:21,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:21,043 INFO L85 PathProgramCache]: Analyzing trace with hash 79762603, now seen corresponding path program 1 times [2021-11-06 22:06:21,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:21,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290443046] [2021-11-06 22:06:21,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:21,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:21,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:21,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290443046] [2021-11-06 22:06:21,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290443046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:21,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:21,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-06 22:06:21,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635897362] [2021-11-06 22:06:21,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 22:06:21,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:21,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 22:06:21,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-06 22:06:21,298 INFO L87 Difference]: Start difference. First operand 1728 states and 2017 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:22,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:22,945 INFO L93 Difference]: Finished difference Result 7463 states and 8700 transitions. [2021-11-06 22:06:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-06 22:06:22,947 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2021-11-06 22:06:22,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:22,962 INFO L225 Difference]: With dead ends: 7463 [2021-11-06 22:06:22,962 INFO L226 Difference]: Without dead ends: 5764 [2021-11-06 22:06:22,968 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-11-06 22:06:22,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5764 states. [2021-11-06 22:06:23,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5764 to 1746. [2021-11-06 22:06:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1746 states, 1731 states have (on average 1.1756210283073367) internal successors, (2035), 1745 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:23,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2035 transitions. [2021-11-06 22:06:23,273 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2035 transitions. Word has length 80 [2021-11-06 22:06:23,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:23,273 INFO L470 AbstractCegarLoop]: Abstraction has 1746 states and 2035 transitions. [2021-11-06 22:06:23,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:23,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2035 transitions. [2021-11-06 22:06:23,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-06 22:06:23,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:23,274 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:23,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-06 22:06:23,275 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:23,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:23,275 INFO L85 PathProgramCache]: Analyzing trace with hash -791658025, now seen corresponding path program 1 times [2021-11-06 22:06:23,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:23,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945490237] [2021-11-06 22:06:23,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:23,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:23,327 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:06:23,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583449586] [2021-11-06 22:06:23,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:23,328 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:06:23,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:06:23,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:06:23,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 22:06:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:34,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-06 22:06:34,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:06:34,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:34,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:34,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945490237] [2021-11-06 22:06:34,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:06:34,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583449586] [2021-11-06 22:06:34,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583449586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:34,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:34,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-06 22:06:34,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836023893] [2021-11-06 22:06:34,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 22:06:34,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:34,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 22:06:34,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-06 22:06:34,759 INFO L87 Difference]: Start difference. First operand 1746 states and 2035 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:36,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:36,186 INFO L93 Difference]: Finished difference Result 5761 states and 6692 transitions. [2021-11-06 22:06:36,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 22:06:36,186 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2021-11-06 22:06:36,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:36,198 INFO L225 Difference]: With dead ends: 5761 [2021-11-06 22:06:36,198 INFO L226 Difference]: Without dead ends: 4044 [2021-11-06 22:06:36,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-06 22:06:36,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2021-11-06 22:06:36,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 1764. [2021-11-06 22:06:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1749 states have (on average 1.1738136077758718) internal successors, (2053), 1763 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:36,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2053 transitions. [2021-11-06 22:06:36,530 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2053 transitions. Word has length 86 [2021-11-06 22:06:36,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:36,530 INFO L470 AbstractCegarLoop]: Abstraction has 1764 states and 2053 transitions. [2021-11-06 22:06:36,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:36,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2053 transitions. [2021-11-06 22:06:36,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 22:06:36,531 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:36,531 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:36,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-06 22:06:36,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-06 22:06:36,732 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:36,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:36,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1316328326, now seen corresponding path program 1 times [2021-11-06 22:06:36,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:36,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834636342] [2021-11-06 22:06:36,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:36,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:36,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:36,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834636342] [2021-11-06 22:06:36,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834636342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:36,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:36,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:06:36,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870561155] [2021-11-06 22:06:36,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:36,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:36,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:36,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:36,900 INFO L87 Difference]: Start difference. First operand 1764 states and 2053 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:37,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:37,407 INFO L93 Difference]: Finished difference Result 2573 states and 2992 transitions. [2021-11-06 22:06:37,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 22:06:37,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-06 22:06:37,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:37,412 INFO L225 Difference]: With dead ends: 2573 [2021-11-06 22:06:37,413 INFO L226 Difference]: Without dead ends: 2565 [2021-11-06 22:06:37,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:37,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2021-11-06 22:06:37,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 1756. [2021-11-06 22:06:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1745 states have (on average 1.1696275071633238) internal successors, (2041), 1755 states have internal predecessors, (2041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:37,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2041 transitions. [2021-11-06 22:06:37,764 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2041 transitions. Word has length 88 [2021-11-06 22:06:37,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:37,764 INFO L470 AbstractCegarLoop]: Abstraction has 1756 states and 2041 transitions. [2021-11-06 22:06:37,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:37,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2041 transitions. [2021-11-06 22:06:37,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-06 22:06:37,766 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:37,766 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:37,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-06 22:06:37,766 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:37,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:37,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1100523819, now seen corresponding path program 1 times [2021-11-06 22:06:37,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:37,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361035424] [2021-11-06 22:06:37,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:37,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:37,835 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:06:37,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364173831] [2021-11-06 22:06:37,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:37,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:06:37,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:06:37,845 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:06:37,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 22:06:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:45,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1884 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-06 22:06:45,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:06:45,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:45,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:45,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361035424] [2021-11-06 22:06:45,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:06:45,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364173831] [2021-11-06 22:06:45,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364173831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:45,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:45,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 22:06:45,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300558922] [2021-11-06 22:06:45,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 22:06:45,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:45,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 22:06:45,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 22:06:45,521 INFO L87 Difference]: Start difference. First operand 1756 states and 2041 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:46,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:46,405 INFO L93 Difference]: Finished difference Result 5713 states and 6607 transitions. [2021-11-06 22:06:46,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 22:06:46,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2021-11-06 22:06:46,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:46,414 INFO L225 Difference]: With dead ends: 5713 [2021-11-06 22:06:46,415 INFO L226 Difference]: Without dead ends: 3986 [2021-11-06 22:06:46,419 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-06 22:06:46,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2021-11-06 22:06:46,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 1771. [2021-11-06 22:06:46,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1760 states have (on average 1.1681818181818182) internal successors, (2056), 1770 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2056 transitions. [2021-11-06 22:06:46,736 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2056 transitions. Word has length 92 [2021-11-06 22:06:46,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:46,736 INFO L470 AbstractCegarLoop]: Abstraction has 1771 states and 2056 transitions. [2021-11-06 22:06:46,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:46,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2056 transitions. [2021-11-06 22:06:46,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 22:06:46,737 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:46,737 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:46,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-06 22:06:46,951 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,SelfDestructingSolverStorable30 [2021-11-06 22:06:46,952 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:46,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:46,952 INFO L85 PathProgramCache]: Analyzing trace with hash 65411564, now seen corresponding path program 1 times [2021-11-06 22:06:46,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:46,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757848251] [2021-11-06 22:06:46,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:46,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:06:47,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:06:47,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:06:47,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757848251] [2021-11-06 22:06:47,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757848251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:06:47,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:06:47,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 22:06:47,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708783926] [2021-11-06 22:06:47,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:06:47,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:06:47,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:06:47,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:06:47,105 INFO L87 Difference]: Start difference. First operand 1771 states and 2056 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:49,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:06:49,624 INFO L93 Difference]: Finished difference Result 2621 states and 3040 transitions. [2021-11-06 22:06:49,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 22:06:49,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-06 22:06:49,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:06:49,630 INFO L225 Difference]: With dead ends: 2621 [2021-11-06 22:06:49,630 INFO L226 Difference]: Without dead ends: 2609 [2021-11-06 22:06:49,632 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:06:49,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2021-11-06 22:06:49,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 1759. [2021-11-06 22:06:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1759 states, 1754 states have (on average 1.1619156214367161) internal successors, (2038), 1758 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:49,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 2038 transitions. [2021-11-06 22:06:49,941 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 2038 transitions. Word has length 93 [2021-11-06 22:06:49,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:06:49,942 INFO L470 AbstractCegarLoop]: Abstraction has 1759 states and 2038 transitions. [2021-11-06 22:06:49,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:06:49,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 2038 transitions. [2021-11-06 22:06:49,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-06 22:06:49,943 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:06:49,943 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:06:49,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-06 22:06:49,944 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:06:49,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:06:49,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1594399188, now seen corresponding path program 1 times [2021-11-06 22:06:49,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:06:49,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146631214] [2021-11-06 22:06:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:49,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:06:49,988 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:06:49,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807480088] [2021-11-06 22:06:49,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:06:49,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:06:49,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:06:49,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:06:49,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 22:07:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:00,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-06 22:07:00,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:07:00,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:07:00,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:00,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146631214] [2021-11-06 22:07:00,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:07:00,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807480088] [2021-11-06 22:07:00,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807480088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:07:00,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:07:00,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 22:07:00,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322416181] [2021-11-06 22:07:00,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 22:07:00,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:00,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 22:07:00,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 22:07:00,900 INFO L87 Difference]: Start difference. First operand 1759 states and 2038 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:01,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:01,925 INFO L93 Difference]: Finished difference Result 5158 states and 5943 transitions. [2021-11-06 22:07:01,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-06 22:07:01,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2021-11-06 22:07:01,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:01,932 INFO L225 Difference]: With dead ends: 5158 [2021-11-06 22:07:01,932 INFO L226 Difference]: Without dead ends: 3428 [2021-11-06 22:07:01,936 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-11-06 22:07:01,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2021-11-06 22:07:02,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 1514. [2021-11-06 22:07:02,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1509 states have (on average 1.1557322730284958) internal successors, (1744), 1513 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:02,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 1744 transitions. [2021-11-06 22:07:02,236 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 1744 transitions. Word has length 97 [2021-11-06 22:07:02,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:02,236 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 1744 transitions. [2021-11-06 22:07:02,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 1744 transitions. [2021-11-06 22:07:02,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-06 22:07:02,238 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:02,238 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:02,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-06 22:07:02,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:02,453 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:02,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:02,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1871187619, now seen corresponding path program 1 times [2021-11-06 22:07:02,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:02,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749935078] [2021-11-06 22:07:02,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:02,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:07:03,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:03,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749935078] [2021-11-06 22:07:03,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749935078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:07:03,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:07:03,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-06 22:07:03,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589742462] [2021-11-06 22:07:03,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 22:07:03,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:03,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 22:07:03,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-06 22:07:03,279 INFO L87 Difference]: Start difference. First operand 1514 states and 1744 transitions. Second operand has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 12 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:04,539 INFO L93 Difference]: Finished difference Result 4030 states and 4634 transitions. [2021-11-06 22:07:04,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-06 22:07:04,540 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 12 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2021-11-06 22:07:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:04,545 INFO L225 Difference]: With dead ends: 4030 [2021-11-06 22:07:04,545 INFO L226 Difference]: Without dead ends: 3022 [2021-11-06 22:07:04,548 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2021-11-06 22:07:04,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3022 states. [2021-11-06 22:07:04,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3022 to 1624. [2021-11-06 22:07:04,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1619 states have (on average 1.150710315009265) internal successors, (1863), 1623 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:04,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 1863 transitions. [2021-11-06 22:07:04,855 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 1863 transitions. Word has length 128 [2021-11-06 22:07:04,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:04,856 INFO L470 AbstractCegarLoop]: Abstraction has 1624 states and 1863 transitions. [2021-11-06 22:07:04,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 12 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:04,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 1863 transitions. [2021-11-06 22:07:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-06 22:07:04,858 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:04,859 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:04,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-06 22:07:04,859 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:04,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1786430019, now seen corresponding path program 1 times [2021-11-06 22:07:04,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:04,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930250536] [2021-11-06 22:07:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:04,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:04,904 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:07:04,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045566924] [2021-11-06 22:07:04,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:04,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:04,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:07:04,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:07:04,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 22:07:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:05,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 2113 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-06 22:07:05,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:07:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 22:07:06,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:06,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930250536] [2021-11-06 22:07:06,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:07:06,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045566924] [2021-11-06 22:07:06,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045566924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:07:06,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:07:06,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-06 22:07:06,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770912473] [2021-11-06 22:07:06,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-06 22:07:06,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:06,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-06 22:07:06,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-11-06 22:07:06,144 INFO L87 Difference]: Start difference. First operand 1624 states and 1863 transitions. Second operand has 15 states, 15 states have (on average 8.933333333333334) internal successors, (134), 15 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:06,875 INFO L93 Difference]: Finished difference Result 1624 states and 1863 transitions. [2021-11-06 22:07:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-06 22:07:06,876 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.933333333333334) internal successors, (134), 15 states have internal predecessors, (134), 0 states have call successors, (0), 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 136 [2021-11-06 22:07:06,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:06,878 INFO L225 Difference]: With dead ends: 1624 [2021-11-06 22:07:06,879 INFO L226 Difference]: Without dead ends: 1619 [2021-11-06 22:07:06,880 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2021-11-06 22:07:06,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2021-11-06 22:07:07,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1619. [2021-11-06 22:07:07,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1615 states have (on average 1.1504643962848298) internal successors, (1858), 1618 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 1858 transitions. [2021-11-06 22:07:07,198 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 1858 transitions. Word has length 136 [2021-11-06 22:07:07,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:07,199 INFO L470 AbstractCegarLoop]: Abstraction has 1619 states and 1858 transitions. [2021-11-06 22:07:07,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.933333333333334) internal successors, (134), 15 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:07,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 1858 transitions. [2021-11-06 22:07:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-06 22:07:07,207 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:07,208 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:07,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-06 22:07:07,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:07,435 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:07,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:07,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1092580972, now seen corresponding path program 1 times [2021-11-06 22:07:07,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:07,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502350507] [2021-11-06 22:07:07,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:07,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:07,502 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:07:07,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702546265] [2021-11-06 22:07:07,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:07,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:07,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:07:07,504 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:07:07,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-06 22:07:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:16,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 2166 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-06 22:07:16,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:07:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:07:16,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:16,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502350507] [2021-11-06 22:07:16,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:07:16,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702546265] [2021-11-06 22:07:16,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702546265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:07:16,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:07:16,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-06 22:07:16,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085640252] [2021-11-06 22:07:16,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-06 22:07:16,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:16,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-06 22:07:16,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-06 22:07:16,775 INFO L87 Difference]: Start difference. First operand 1619 states and 1858 transitions. Second operand has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:18,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:18,098 INFO L93 Difference]: Finished difference Result 5124 states and 5876 transitions. [2021-11-06 22:07:18,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-06 22:07:18,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2021-11-06 22:07:18,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:18,103 INFO L225 Difference]: With dead ends: 5124 [2021-11-06 22:07:18,103 INFO L226 Difference]: Without dead ends: 3642 [2021-11-06 22:07:18,106 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-11-06 22:07:18,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3642 states. [2021-11-06 22:07:18,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3642 to 1619. [2021-11-06 22:07:18,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1615 states have (on average 1.1492260061919504) internal successors, (1856), 1618 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:18,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 1856 transitions. [2021-11-06 22:07:18,404 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 1856 transitions. Word has length 138 [2021-11-06 22:07:18,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:18,405 INFO L470 AbstractCegarLoop]: Abstraction has 1619 states and 1856 transitions. [2021-11-06 22:07:18,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:18,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 1856 transitions. [2021-11-06 22:07:18,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-06 22:07:18,407 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:18,407 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:18,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-06 22:07:18,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-06 22:07:18,631 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:18,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:18,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1474289027, now seen corresponding path program 1 times [2021-11-06 22:07:18,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:18,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13558777] [2021-11-06 22:07:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:18,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:18,672 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:07:18,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39945815] [2021-11-06 22:07:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:18,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:18,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:07:18,674 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:07:18,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-06 22:07:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:19,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 2200 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 22:07:19,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:07:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 22:07:19,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:19,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13558777] [2021-11-06 22:07:19,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:07:19,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39945815] [2021-11-06 22:07:19,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39945815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:07:19,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:07:19,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 22:07:19,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895741029] [2021-11-06 22:07:19,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 22:07:19,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:19,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 22:07:19,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:07:19,733 INFO L87 Difference]: Start difference. First operand 1619 states and 1856 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:22,590 INFO L93 Difference]: Finished difference Result 3539 states and 4059 transitions. [2021-11-06 22:07:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 22:07:22,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 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 144 [2021-11-06 22:07:22,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:22,597 INFO L225 Difference]: With dead ends: 3539 [2021-11-06 22:07:22,597 INFO L226 Difference]: Without dead ends: 3516 [2021-11-06 22:07:22,598 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-06 22:07:22,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3516 states. [2021-11-06 22:07:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3516 to 3041. [2021-11-06 22:07:23,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 3037 states have (on average 1.1521238063878827) internal successors, (3499), 3040 states have internal predecessors, (3499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 3499 transitions. [2021-11-06 22:07:23,208 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 3499 transitions. Word has length 144 [2021-11-06 22:07:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:23,208 INFO L470 AbstractCegarLoop]: Abstraction has 3041 states and 3499 transitions. [2021-11-06 22:07:23,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:23,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 3499 transitions. [2021-11-06 22:07:23,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-06 22:07:23,211 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:23,211 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:23,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-06 22:07:23,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-06 22:07:23,417 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:23,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:23,418 INFO L85 PathProgramCache]: Analyzing trace with hash -286602675, now seen corresponding path program 1 times [2021-11-06 22:07:23,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:23,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100544151] [2021-11-06 22:07:23,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:23,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:23,463 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:07:23,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676095327] [2021-11-06 22:07:23,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:23,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:23,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:07:23,465 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:07:23,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-06 22:07:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:24,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 2688 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-06 22:07:24,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:07:24,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:07:24,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:24,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100544151] [2021-11-06 22:07:24,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:07:24,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676095327] [2021-11-06 22:07:24,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676095327] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:07:24,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:07:24,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-06 22:07:24,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402103607] [2021-11-06 22:07:24,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 22:07:24,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:24,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 22:07:24,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-06 22:07:24,602 INFO L87 Difference]: Start difference. First operand 3041 states and 3499 transitions. Second operand has 12 states, 12 states have (on average 13.25) internal successors, (159), 12 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:26,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:26,113 INFO L93 Difference]: Finished difference Result 7088 states and 8145 transitions. [2021-11-06 22:07:26,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-06 22:07:26,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.25) internal successors, (159), 12 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2021-11-06 22:07:26,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:26,120 INFO L225 Difference]: With dead ends: 7088 [2021-11-06 22:07:26,120 INFO L226 Difference]: Without dead ends: 5044 [2021-11-06 22:07:26,124 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2021-11-06 22:07:26,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5044 states. [2021-11-06 22:07:26,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5044 to 2699. [2021-11-06 22:07:26,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2699 states, 2695 states have (on average 1.1580705009276437) internal successors, (3121), 2698 states have internal predecessors, (3121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:26,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 3121 transitions. [2021-11-06 22:07:26,637 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 3121 transitions. Word has length 159 [2021-11-06 22:07:26,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:26,637 INFO L470 AbstractCegarLoop]: Abstraction has 2699 states and 3121 transitions. [2021-11-06 22:07:26,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.25) internal successors, (159), 12 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:26,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 3121 transitions. [2021-11-06 22:07:26,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-06 22:07:26,639 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:26,639 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:26,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-06 22:07:26,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:26,840 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:26,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:26,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2058454976, now seen corresponding path program 1 times [2021-11-06 22:07:26,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:26,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730288438] [2021-11-06 22:07:26,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:26,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:26,892 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:07:26,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1561730983] [2021-11-06 22:07:26,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:26,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:26,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:07:26,894 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:07:26,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-06 22:07:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:27,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 2640 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 22:07:27,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:07:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-06 22:07:28,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:28,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730288438] [2021-11-06 22:07:28,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:07:28,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561730983] [2021-11-06 22:07:28,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561730983] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 22:07:28,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 22:07:28,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-11-06 22:07:28,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576519432] [2021-11-06 22:07:28,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 22:07:28,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:28,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 22:07:28,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:07:28,363 INFO L87 Difference]: Start difference. First operand 2699 states and 3121 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:31,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:31,263 INFO L93 Difference]: Finished difference Result 3644 states and 4190 transitions. [2021-11-06 22:07:31,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 22:07:31,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 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 187 [2021-11-06 22:07:31,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:31,267 INFO L225 Difference]: With dead ends: 3644 [2021-11-06 22:07:31,267 INFO L226 Difference]: Without dead ends: 3638 [2021-11-06 22:07:31,268 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-06 22:07:31,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3638 states. [2021-11-06 22:07:31,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3638 to 2084. [2021-11-06 22:07:31,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2084 states, 2080 states have (on average 1.1557692307692307) internal successors, (2404), 2083 states have internal predecessors, (2404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:31,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2404 transitions. [2021-11-06 22:07:31,725 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2404 transitions. Word has length 187 [2021-11-06 22:07:31,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:31,725 INFO L470 AbstractCegarLoop]: Abstraction has 2084 states and 2404 transitions. [2021-11-06 22:07:31,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:31,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2404 transitions. [2021-11-06 22:07:31,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-06 22:07:31,726 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:31,726 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:31,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-06 22:07:31,927 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,SelfDestructingSolverStorable38 [2021-11-06 22:07:31,927 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash -762177767, now seen corresponding path program 1 times [2021-11-06 22:07:31,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:31,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205626671] [2021-11-06 22:07:31,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:31,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:31,972 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:07:31,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700102216] [2021-11-06 22:07:31,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:31,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:31,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:07:31,974 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:07:31,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-06 22:07:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:32,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 2951 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 22:07:32,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:07:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 22:07:33,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:33,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205626671] [2021-11-06 22:07:33,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:07:33,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700102216] [2021-11-06 22:07:33,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700102216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:07:33,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:07:33,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:07:33,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428951069] [2021-11-06 22:07:33,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 22:07:33,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:33,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 22:07:33,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 22:07:33,284 INFO L87 Difference]: Start difference. First operand 2084 states and 2404 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:33,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:33,949 INFO L93 Difference]: Finished difference Result 4470 states and 5146 transitions. [2021-11-06 22:07:33,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 22:07:33,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 198 [2021-11-06 22:07:33,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:33,953 INFO L225 Difference]: With dead ends: 4470 [2021-11-06 22:07:33,954 INFO L226 Difference]: Without dead ends: 2415 [2021-11-06 22:07:33,956 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 22:07:33,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2021-11-06 22:07:34,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2093. [2021-11-06 22:07:34,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2093 states, 2089 states have (on average 1.1550981330780277) internal successors, (2413), 2092 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:34,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2413 transitions. [2021-11-06 22:07:34,451 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2413 transitions. Word has length 198 [2021-11-06 22:07:34,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:34,451 INFO L470 AbstractCegarLoop]: Abstraction has 2093 states and 2413 transitions. [2021-11-06 22:07:34,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:34,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2413 transitions. [2021-11-06 22:07:34,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-06 22:07:34,453 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:34,453 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:34,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-06 22:07:34,662 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,SelfDestructingSolverStorable39 [2021-11-06 22:07:34,663 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:34,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:34,663 INFO L85 PathProgramCache]: Analyzing trace with hash 578991231, now seen corresponding path program 1 times [2021-11-06 22:07:34,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:34,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310124954] [2021-11-06 22:07:34,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:34,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:34,705 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:07:34,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747669618] [2021-11-06 22:07:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:34,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:34,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:07:34,707 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:07:34,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-06 22:07:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:35,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 3492 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 22:07:35,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:07:36,332 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 22:07:36,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:36,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310124954] [2021-11-06 22:07:36,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:07:36,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747669618] [2021-11-06 22:07:36,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747669618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:07:36,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:07:36,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 22:07:36,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135049929] [2021-11-06 22:07:36,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 22:07:36,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:36,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 22:07:36,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 22:07:36,334 INFO L87 Difference]: Start difference. First operand 2093 states and 2413 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:36,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:36,828 INFO L93 Difference]: Finished difference Result 4154 states and 4793 transitions. [2021-11-06 22:07:36,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 22:07:36,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 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 259 [2021-11-06 22:07:36,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:36,831 INFO L225 Difference]: With dead ends: 4154 [2021-11-06 22:07:36,831 INFO L226 Difference]: Without dead ends: 2090 [2021-11-06 22:07:36,833 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 22:07:36,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2021-11-06 22:07:37,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 2090. [2021-11-06 22:07:37,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2090 states, 2086 states have (on average 1.148130393096836) internal successors, (2395), 2089 states have internal predecessors, (2395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:37,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2395 transitions. [2021-11-06 22:07:37,320 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2395 transitions. Word has length 259 [2021-11-06 22:07:37,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:37,320 INFO L470 AbstractCegarLoop]: Abstraction has 2090 states and 2395 transitions. [2021-11-06 22:07:37,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:37,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2395 transitions. [2021-11-06 22:07:37,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-06 22:07:37,322 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:37,322 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:37,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-06 22:07:37,522 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,SelfDestructingSolverStorable40 [2021-11-06 22:07:37,523 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:37,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1914848130, now seen corresponding path program 1 times [2021-11-06 22:07:37,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:37,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78598806] [2021-11-06 22:07:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:37,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:37,563 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:07:37,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444611240] [2021-11-06 22:07:37,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:37,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:37,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:07:37,565 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:07:37,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-06 22:07:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:38,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 3518 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 22:07:38,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:07:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 22:07:39,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:39,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78598806] [2021-11-06 22:07:39,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:07:39,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444611240] [2021-11-06 22:07:39,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444611240] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 22:07:39,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 22:07:39,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-11-06 22:07:39,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349785202] [2021-11-06 22:07:39,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:07:39,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:39,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:07:39,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:07:39,105 INFO L87 Difference]: Start difference. First operand 2090 states and 2395 transitions. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:39,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:39,865 INFO L93 Difference]: Finished difference Result 4786 states and 5454 transitions. [2021-11-06 22:07:39,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:07:39,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 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 261 [2021-11-06 22:07:39,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:39,869 INFO L225 Difference]: With dead ends: 4786 [2021-11-06 22:07:39,869 INFO L226 Difference]: Without dead ends: 2725 [2021-11-06 22:07:39,871 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:07:39,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2021-11-06 22:07:40,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 2306. [2021-11-06 22:07:40,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2302 states have (on average 1.1459600347523893) internal successors, (2638), 2305 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 2638 transitions. [2021-11-06 22:07:40,395 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 2638 transitions. Word has length 261 [2021-11-06 22:07:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:40,395 INFO L470 AbstractCegarLoop]: Abstraction has 2306 states and 2638 transitions. [2021-11-06 22:07:40,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 2638 transitions. [2021-11-06 22:07:40,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-11-06 22:07:40,397 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:40,398 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:40,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-06 22:07:40,611 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,SelfDestructingSolverStorable41 [2021-11-06 22:07:40,612 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:40,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:40,612 INFO L85 PathProgramCache]: Analyzing trace with hash -291331070, now seen corresponding path program 1 times [2021-11-06 22:07:40,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:40,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496647893] [2021-11-06 22:07:40,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:40,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:40,695 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:07:40,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419484758] [2021-11-06 22:07:40,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:40,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:40,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:07:40,697 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:07:40,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-06 22:07:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:07:41,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 3875 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 22:07:41,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:07:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-06 22:07:42,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:07:42,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496647893] [2021-11-06 22:07:42,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:07:42,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419484758] [2021-11-06 22:07:42,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419484758] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 22:07:42,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 22:07:42,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-11-06 22:07:42,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770049314] [2021-11-06 22:07:42,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 22:07:42,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:07:42,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 22:07:42,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:07:42,476 INFO L87 Difference]: Start difference. First operand 2306 states and 2638 transitions. Second operand has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:43,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:07:43,416 INFO L93 Difference]: Finished difference Result 5390 states and 6122 transitions. [2021-11-06 22:07:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 22:07:43,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 0 states have call successors, (0), 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 302 [2021-11-06 22:07:43,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:07:43,421 INFO L225 Difference]: With dead ends: 5390 [2021-11-06 22:07:43,421 INFO L226 Difference]: Without dead ends: 3113 [2021-11-06 22:07:43,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:07:43,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2021-11-06 22:07:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 2459. [2021-11-06 22:07:44,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2455 states have (on average 1.144195519348269) internal successors, (2809), 2458 states have internal predecessors, (2809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:44,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 2809 transitions. [2021-11-06 22:07:44,020 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 2809 transitions. Word has length 302 [2021-11-06 22:07:44,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:07:44,021 INFO L470 AbstractCegarLoop]: Abstraction has 2459 states and 2809 transitions. [2021-11-06 22:07:44,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:07:44,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 2809 transitions. [2021-11-06 22:07:44,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-11-06 22:07:44,024 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:07:44,024 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:07:44,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-06 22:07:44,224 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,SelfDestructingSolverStorable42 [2021-11-06 22:07:44,225 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:07:44,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:07:44,225 INFO L85 PathProgramCache]: Analyzing trace with hash -999225160, now seen corresponding path program 2 times [2021-11-06 22:07:44,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:07:44,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761940124] [2021-11-06 22:07:44,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:07:44,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:07:44,287 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:07:44,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779822778] [2021-11-06 22:07:44,288 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 22:07:44,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:07:44,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:07:44,289 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:07:44,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-06 22:08:04,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-06 22:08:04,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 22:08:04,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 4232 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-06 22:08:04,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:08:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 66 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-06 22:08:04,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:08:04,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761940124] [2021-11-06 22:08:04,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:08:04,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779822778] [2021-11-06 22:08:04,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779822778] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 22:08:04,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 22:08:04,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-11-06 22:08:04,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878494200] [2021-11-06 22:08:04,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 22:08:04,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:08:04,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 22:08:04,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-06 22:08:04,921 INFO L87 Difference]: Start difference. First operand 2459 states and 2809 transitions. Second operand has 6 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:06,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:08:06,075 INFO L93 Difference]: Finished difference Result 5931 states and 6718 transitions. [2021-11-06 22:08:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 22:08:06,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 0 states have call successors, (0), 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 343 [2021-11-06 22:08:06,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:08:06,080 INFO L225 Difference]: With dead ends: 5931 [2021-11-06 22:08:06,080 INFO L226 Difference]: Without dead ends: 3501 [2021-11-06 22:08:06,083 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-06 22:08:06,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2021-11-06 22:08:06,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 2612. [2021-11-06 22:08:06,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2608 states have (on average 1.142638036809816) internal successors, (2980), 2611 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:06,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 2980 transitions. [2021-11-06 22:08:06,723 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 2980 transitions. Word has length 343 [2021-11-06 22:08:06,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:08:06,724 INFO L470 AbstractCegarLoop]: Abstraction has 2612 states and 2980 transitions. [2021-11-06 22:08:06,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:06,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 2980 transitions. [2021-11-06 22:08:06,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-11-06 22:08:06,726 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:08:06,727 INFO L513 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:08:06,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-06 22:08:06,933 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,SelfDestructingSolverStorable43 [2021-11-06 22:08:06,933 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:08:06,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:08:06,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1408657144, now seen corresponding path program 3 times [2021-11-06 22:08:06,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:08:06,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800942094] [2021-11-06 22:08:06,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:08:06,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:08:06,989 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:08:06,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789037775] [2021-11-06 22:08:06,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-06 22:08:06,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:08:06,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:08:06,991 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:08:06,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-06 22:08:26,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-06 22:08:26,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 22:08:26,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 2977 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-06 22:08:26,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:08:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-11-06 22:08:26,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:08:26,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800942094] [2021-11-06 22:08:26,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:08:26,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789037775] [2021-11-06 22:08:26,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789037775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:08:26,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:08:26,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 22:08:26,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375572633] [2021-11-06 22:08:26,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:08:26,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:08:26,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:08:26,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:08:26,872 INFO L87 Difference]: Start difference. First operand 2612 states and 2980 transitions. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:27,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:08:27,691 INFO L93 Difference]: Finished difference Result 5608 states and 6375 transitions. [2021-11-06 22:08:27,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 22:08:27,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 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 384 [2021-11-06 22:08:27,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:08:27,695 INFO L225 Difference]: With dead ends: 5608 [2021-11-06 22:08:27,695 INFO L226 Difference]: Without dead ends: 3025 [2021-11-06 22:08:27,697 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:08:27,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2021-11-06 22:08:28,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2618. [2021-11-06 22:08:28,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2618 states, 2614 states have (on average 1.142310635042081) internal successors, (2986), 2617 states have internal predecessors, (2986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2618 states to 2618 states and 2986 transitions. [2021-11-06 22:08:28,274 INFO L78 Accepts]: Start accepts. Automaton has 2618 states and 2986 transitions. Word has length 384 [2021-11-06 22:08:28,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:08:28,275 INFO L470 AbstractCegarLoop]: Abstraction has 2618 states and 2986 transitions. [2021-11-06 22:08:28,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:28,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2618 states and 2986 transitions. [2021-11-06 22:08:28,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2021-11-06 22:08:28,278 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:08:28,278 INFO L513 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:08:28,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-06 22:08:28,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:08:28,483 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:08:28,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:08:28,484 INFO L85 PathProgramCache]: Analyzing trace with hash 904346034, now seen corresponding path program 1 times [2021-11-06 22:08:28,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:08:28,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210345035] [2021-11-06 22:08:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:08:28,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:08:28,537 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:08:28,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057111677] [2021-11-06 22:08:28,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:08:28,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:08:28,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:08:28,539 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:08:28,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-06 22:08:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:08:30,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 4656 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-06 22:08:30,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:08:30,880 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 3 proven. 130 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-11-06 22:08:30,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:08:30,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210345035] [2021-11-06 22:08:30,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:08:30,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057111677] [2021-11-06 22:08:30,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057111677] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 22:08:30,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 22:08:30,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-11-06 22:08:30,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463086357] [2021-11-06 22:08:30,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 22:08:30,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:08:30,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 22:08:30,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-06 22:08:30,882 INFO L87 Difference]: Start difference. First operand 2618 states and 2986 transitions. Second operand has 7 states, 7 states have (on average 47.0) internal successors, (329), 7 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:32,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:08:32,095 INFO L93 Difference]: Finished difference Result 6259 states and 7065 transitions. [2021-11-06 22:08:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 22:08:32,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 47.0) internal successors, (329), 7 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 388 [2021-11-06 22:08:32,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:08:32,101 INFO L225 Difference]: With dead ends: 6259 [2021-11-06 22:08:32,102 INFO L226 Difference]: Without dead ends: 3670 [2021-11-06 22:08:32,106 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-06 22:08:32,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2021-11-06 22:08:32,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 2771. [2021-11-06 22:08:32,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2767 states have (on average 1.140946873870618) internal successors, (3157), 2770 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 3157 transitions. [2021-11-06 22:08:32,714 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 3157 transitions. Word has length 388 [2021-11-06 22:08:32,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:08:32,715 INFO L470 AbstractCegarLoop]: Abstraction has 2771 states and 3157 transitions. [2021-11-06 22:08:32,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 47.0) internal successors, (329), 7 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 3157 transitions. [2021-11-06 22:08:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2021-11-06 22:08:32,718 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:08:32,718 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:08:32,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-06 22:08:32,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:08:32,944 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:08:32,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:08:32,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1706388662, now seen corresponding path program 2 times [2021-11-06 22:08:32,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:08:32,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033407189] [2021-11-06 22:08:32,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:08:32,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:08:32,996 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:08:32,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043004269] [2021-11-06 22:08:32,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 22:08:32,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:08:32,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:08:32,998 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:08:33,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-06 22:08:54,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-06 22:08:54,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 22:08:54,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 5015 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 22:08:54,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:08:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 3 proven. 215 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-06 22:08:55,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:08:55,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033407189] [2021-11-06 22:08:55,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:08:55,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043004269] [2021-11-06 22:08:55,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043004269] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 22:08:55,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 22:08:55,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-11-06 22:08:55,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183248161] [2021-11-06 22:08:55,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 22:08:55,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:08:55,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 22:08:55,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-06 22:08:55,051 INFO L87 Difference]: Start difference. First operand 2771 states and 3157 transitions. Second operand has 8 states, 8 states have (on average 43.75) internal successors, (350), 8 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:56,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:08:56,404 INFO L93 Difference]: Finished difference Result 6725 states and 7574 transitions. [2021-11-06 22:08:56,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 22:08:56,405 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 43.75) internal successors, (350), 8 states have internal predecessors, (350), 0 states have call successors, (0), 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 429 [2021-11-06 22:08:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:08:56,410 INFO L225 Difference]: With dead ends: 6725 [2021-11-06 22:08:56,410 INFO L226 Difference]: Without dead ends: 3983 [2021-11-06 22:08:56,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-06 22:08:56,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2021-11-06 22:08:57,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 2861. [2021-11-06 22:08:57,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2861 states, 2857 states have (on average 1.1396569828491425) internal successors, (3256), 2860 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:57,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 3256 transitions. [2021-11-06 22:08:57,094 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 3256 transitions. Word has length 429 [2021-11-06 22:08:57,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:08:57,094 INFO L470 AbstractCegarLoop]: Abstraction has 2861 states and 3256 transitions. [2021-11-06 22:08:57,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.75) internal successors, (350), 8 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:08:57,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 3256 transitions. [2021-11-06 22:08:57,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-11-06 22:08:57,097 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:08:57,097 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:08:57,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-06 22:08:57,299 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,SelfDestructingSolverStorable46 [2021-11-06 22:08:57,299 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:08:57,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:08:57,300 INFO L85 PathProgramCache]: Analyzing trace with hash -686693014, now seen corresponding path program 3 times [2021-11-06 22:08:57,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:08:57,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059458919] [2021-11-06 22:08:57,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:08:57,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:08:57,353 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:08:57,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972644905] [2021-11-06 22:08:57,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-06 22:08:57,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:08:57,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:08:57,355 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:08:57,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-06 22:09:15,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-06 22:09:15,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 22:09:15,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 3044 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-06 22:09:15,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:09:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2021-11-06 22:09:16,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:09:16,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059458919] [2021-11-06 22:09:16,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:09:16,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972644905] [2021-11-06 22:09:16,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972644905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:09:16,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:09:16,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 22:09:16,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003445279] [2021-11-06 22:09:16,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 22:09:16,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:09:16,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 22:09:16,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 22:09:16,157 INFO L87 Difference]: Start difference. First operand 2861 states and 3256 transitions. Second operand has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:09:17,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:09:17,296 INFO L93 Difference]: Finished difference Result 6516 states and 7364 transitions. [2021-11-06 22:09:17,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-06 22:09:17,296 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 0 states have call successors, (0), 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 470 [2021-11-06 22:09:17,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:09:17,300 INFO L225 Difference]: With dead ends: 6516 [2021-11-06 22:09:17,300 INFO L226 Difference]: Without dead ends: 3684 [2021-11-06 22:09:17,304 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-06 22:09:17,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2021-11-06 22:09:17,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 2870. [2021-11-06 22:09:17,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2866 states have (on average 1.139218422889044) internal successors, (3265), 2869 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:09:17,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 3265 transitions. [2021-11-06 22:09:17,971 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 3265 transitions. Word has length 470 [2021-11-06 22:09:17,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:09:17,972 INFO L470 AbstractCegarLoop]: Abstraction has 2870 states and 3265 transitions. [2021-11-06 22:09:17,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:09:17,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 3265 transitions. [2021-11-06 22:09:17,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-11-06 22:09:17,975 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:09:17,976 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:09:18,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-06 22:09:18,191 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,SelfDestructingSolverStorable47 [2021-11-06 22:09:18,192 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:09:18,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:09:18,192 INFO L85 PathProgramCache]: Analyzing trace with hash -829894750, now seen corresponding path program 1 times [2021-11-06 22:09:18,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:09:18,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592026735] [2021-11-06 22:09:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:09:18,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:09:18,242 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:09:18,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1808149142] [2021-11-06 22:09:18,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:09:18,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:09:18,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:09:18,244 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) [2021-11-06 22:09:18,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-06 22:09:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:09:20,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 5624 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-06 22:09:20,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:09:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 3 proven. 321 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2021-11-06 22:09:21,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:09:21,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592026735] [2021-11-06 22:09:21,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:09:21,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808149142] [2021-11-06 22:09:21,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808149142] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 22:09:21,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 22:09:21,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-11-06 22:09:21,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702724157] [2021-11-06 22:09:21,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-06 22:09:21,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:09:21,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-06 22:09:21,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-06 22:09:21,150 INFO L87 Difference]: Start difference. First operand 2870 states and 3265 transitions. Second operand has 9 states, 9 states have (on average 43.44444444444444) internal successors, (391), 9 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:09:22,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:09:22,693 INFO L93 Difference]: Finished difference Result 7146 states and 8029 transitions. [2021-11-06 22:09:22,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 22:09:22,694 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 43.44444444444444) internal successors, (391), 9 states have internal predecessors, (391), 0 states have call successors, (0), 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 490 [2021-11-06 22:09:22,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:09:22,699 INFO L225 Difference]: With dead ends: 7146 [2021-11-06 22:09:22,699 INFO L226 Difference]: Without dead ends: 4305 [2021-11-06 22:09:22,702 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-06 22:09:22,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4305 states. [2021-11-06 22:09:23,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4305 to 3023. [2021-11-06 22:09:23,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3023 states, 3019 states have (on average 1.1381252070221928) internal successors, (3436), 3022 states have internal predecessors, (3436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:09:23,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 3436 transitions. [2021-11-06 22:09:23,370 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 3436 transitions. Word has length 490 [2021-11-06 22:09:23,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:09:23,371 INFO L470 AbstractCegarLoop]: Abstraction has 3023 states and 3436 transitions. [2021-11-06 22:09:23,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 43.44444444444444) internal successors, (391), 9 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:09:23,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 3436 transitions. [2021-11-06 22:09:23,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2021-11-06 22:09:23,375 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:09:23,375 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:09:23,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-11-06 22:09:23,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-06 22:09:23,592 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:09:23,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:09:23,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1275382580, now seen corresponding path program 2 times [2021-11-06 22:09:23,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:09:23,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294775875] [2021-11-06 22:09:23,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:09:23,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:09:23,680 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:09:23,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942673553] [2021-11-06 22:09:23,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 22:09:23,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:09:23,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:09:23,682 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) [2021-11-06 22:09:23,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-06 22:09:46,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-06 22:09:46,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 22:09:46,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 5981 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 22:09:46,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:09:47,673 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 3 proven. 448 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2021-11-06 22:09:47,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:09:47,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294775875] [2021-11-06 22:09:47,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:09:47,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942673553] [2021-11-06 22:09:47,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942673553] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 22:09:47,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 22:09:47,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-11-06 22:09:47,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428919904] [2021-11-06 22:09:47,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-06 22:09:47,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:09:47,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-06 22:09:47,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-06 22:09:47,675 INFO L87 Difference]: Start difference. First operand 3023 states and 3436 transitions. Second operand has 10 states, 10 states have (on average 41.2) internal successors, (412), 10 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:09:49,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:09:49,252 INFO L93 Difference]: Finished difference Result 7420 states and 8322 transitions. [2021-11-06 22:09:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-06 22:09:49,252 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 41.2) internal successors, (412), 10 states have internal predecessors, (412), 0 states have call successors, (0), 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 531 [2021-11-06 22:09:49,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:09:49,257 INFO L225 Difference]: With dead ends: 7420 [2021-11-06 22:09:49,258 INFO L226 Difference]: Without dead ends: 4426 [2021-11-06 22:09:49,261 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-06 22:09:49,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2021-11-06 22:09:49,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 3176. [2021-11-06 22:09:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3176 states, 3172 states have (on average 1.1371374527112232) internal successors, (3607), 3175 states have internal predecessors, (3607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:09:50,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3176 states to 3176 states and 3607 transitions. [2021-11-06 22:09:50,003 INFO L78 Accepts]: Start accepts. Automaton has 3176 states and 3607 transitions. Word has length 531 [2021-11-06 22:09:50,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:09:50,003 INFO L470 AbstractCegarLoop]: Abstraction has 3176 states and 3607 transitions. [2021-11-06 22:09:50,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 41.2) internal successors, (412), 10 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:09:50,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3176 states and 3607 transitions. [2021-11-06 22:09:50,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2021-11-06 22:09:50,007 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:09:50,007 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:09:50,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-06 22:09:50,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:09:50,216 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:09:50,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:09:50,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1952394216, now seen corresponding path program 3 times [2021-11-06 22:09:50,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:09:50,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169979256] [2021-11-06 22:09:50,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:09:50,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:09:50,273 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:09:50,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [282047005] [2021-11-06 22:09:50,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-06 22:09:50,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:09:50,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:09:50,275 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) [2021-11-06 22:09:50,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-06 22:10:08,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-06 22:10:08,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 22:10:08,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 3296 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-06 22:10:08,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:10:09,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2021-11-06 22:10:09,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:10:09,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169979256] [2021-11-06 22:10:09,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:10:09,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282047005] [2021-11-06 22:10:09,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282047005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:10:09,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:10:09,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-06 22:10:09,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576258389] [2021-11-06 22:10:09,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-06 22:10:09,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:10:09,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-06 22:10:09,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-06 22:10:09,454 INFO L87 Difference]: Start difference. First operand 3176 states and 3607 transitions. Second operand has 11 states, 11 states have (on average 26.0) internal successors, (286), 11 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:10:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:10:11,219 INFO L93 Difference]: Finished difference Result 7732 states and 8764 transitions. [2021-11-06 22:10:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-06 22:10:11,219 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 26.0) internal successors, (286), 11 states have internal predecessors, (286), 0 states have call successors, (0), 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 572 [2021-11-06 22:10:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:10:11,226 INFO L225 Difference]: With dead ends: 7732 [2021-11-06 22:10:11,226 INFO L226 Difference]: Without dead ends: 5576 [2021-11-06 22:10:11,230 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=221, Invalid=535, Unknown=0, NotChecked=0, Total=756 [2021-11-06 22:10:11,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5576 states. [2021-11-06 22:10:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5576 to 2183. [2021-11-06 22:10:11,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 2179 states have (on average 1.1353832033042681) internal successors, (2474), 2182 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:10:11,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 2474 transitions. [2021-11-06 22:10:11,788 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 2474 transitions. Word has length 572 [2021-11-06 22:10:11,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:10:11,789 INFO L470 AbstractCegarLoop]: Abstraction has 2183 states and 2474 transitions. [2021-11-06 22:10:11,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 26.0) internal successors, (286), 11 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:10:11,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 2474 transitions. [2021-11-06 22:10:11,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2021-11-06 22:10:11,794 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:10:11,794 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:10:11,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-06 22:10:12,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2021-11-06 22:10:12,020 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:10:12,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:10:12,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1464383273, now seen corresponding path program 1 times [2021-11-06 22:10:12,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:10:12,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4897330] [2021-11-06 22:10:12,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:10:12,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:10:12,079 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:10:12,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293862250] [2021-11-06 22:10:12,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:10:12,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:10:12,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:10:12,081 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:10:12,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-06 22:10:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:10:40,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 7841 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-06 22:10:40,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:10:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2021-11-06 22:10:42,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:10:42,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4897330] [2021-11-06 22:10:42,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:10:42,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293862250] [2021-11-06 22:10:42,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293862250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:10:42,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:10:42,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 22:10:42,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94987060] [2021-11-06 22:10:42,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 22:10:42,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:10:42,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 22:10:42,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 22:10:42,106 INFO L87 Difference]: Start difference. First operand 2183 states and 2474 transitions. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:10:43,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:10:43,372 INFO L93 Difference]: Finished difference Result 6474 states and 7317 transitions. [2021-11-06 22:10:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 22:10:43,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 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 669 [2021-11-06 22:10:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:10:43,378 INFO L225 Difference]: With dead ends: 6474 [2021-11-06 22:10:43,378 INFO L226 Difference]: Without dead ends: 4320 [2021-11-06 22:10:43,381 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-06 22:10:43,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4320 states. [2021-11-06 22:10:43,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4320 to 2191. [2021-11-06 22:10:43,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2187 states have (on average 1.1348879743941471) internal successors, (2482), 2190 states have internal predecessors, (2482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:10:43,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2482 transitions. [2021-11-06 22:10:43,940 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2482 transitions. Word has length 669 [2021-11-06 22:10:43,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:10:43,940 INFO L470 AbstractCegarLoop]: Abstraction has 2191 states and 2482 transitions. [2021-11-06 22:10:43,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:10:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2482 transitions. [2021-11-06 22:10:43,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2021-11-06 22:10:43,944 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:10:43,945 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:10:44,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-11-06 22:10:44,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:10:44,145 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:10:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:10:44,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1055810303, now seen corresponding path program 1 times [2021-11-06 22:10:44,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:10:44,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579110489] [2021-11-06 22:10:44,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:10:44,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:10:44,200 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:10:44,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231997733] [2021-11-06 22:10:44,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:10:44,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:10:44,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:10:44,201 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:10:44,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-06 22:11:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:11:14,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 8121 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-06 22:11:14,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:11:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2021-11-06 22:11:15,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:11:15,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579110489] [2021-11-06 22:11:15,989 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:11:15,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231997733] [2021-11-06 22:11:15,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231997733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:11:15,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:11:15,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 22:11:15,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729114482] [2021-11-06 22:11:15,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 22:11:15,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:11:15,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 22:11:15,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 22:11:15,991 INFO L87 Difference]: Start difference. First operand 2191 states and 2482 transitions. Second operand has 6 states, 6 states have (on average 67.16666666666667) internal successors, (403), 6 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:11:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:11:17,250 INFO L93 Difference]: Finished difference Result 6224 states and 7035 transitions. [2021-11-06 22:11:17,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 22:11:17,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.16666666666667) internal successors, (403), 6 states have internal predecessors, (403), 0 states have call successors, (0), 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 709 [2021-11-06 22:11:17,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:11:17,255 INFO L225 Difference]: With dead ends: 6224 [2021-11-06 22:11:17,255 INFO L226 Difference]: Without dead ends: 4062 [2021-11-06 22:11:17,257 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-06 22:11:17,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2021-11-06 22:11:17,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 2199. [2021-11-06 22:11:17,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2199 states, 2195 states have (on average 1.1343963553530751) internal successors, (2490), 2198 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:11:17,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 2490 transitions. [2021-11-06 22:11:17,807 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 2490 transitions. Word has length 709 [2021-11-06 22:11:17,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:11:17,807 INFO L470 AbstractCegarLoop]: Abstraction has 2199 states and 2490 transitions. [2021-11-06 22:11:17,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.16666666666667) internal successors, (403), 6 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:11:17,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 2490 transitions. [2021-11-06 22:11:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2021-11-06 22:11:17,812 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:11:17,812 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:11:17,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-06 22:11:18,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:11:18,013 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:11:18,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:11:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash 882454113, now seen corresponding path program 1 times [2021-11-06 22:11:18,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:11:18,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928706742] [2021-11-06 22:11:18,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:11:18,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:11:18,080 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:11:18,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009797221] [2021-11-06 22:11:18,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:11:18,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:11:18,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:11:18,082 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:11:18,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-06 22:11:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:11:50,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 8401 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-06 22:11:50,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:11:51,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2021-11-06 22:11:51,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:11:51,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928706742] [2021-11-06 22:11:51,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:11:51,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009797221] [2021-11-06 22:11:51,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009797221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:11:51,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:11:51,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 22:11:51,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264714808] [2021-11-06 22:11:51,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 22:11:51,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:11:51,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 22:11:51,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 22:11:51,808 INFO L87 Difference]: Start difference. First operand 2199 states and 2490 transitions. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:11:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:11:52,911 INFO L93 Difference]: Finished difference Result 5429 states and 6114 transitions. [2021-11-06 22:11:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 22:11:52,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 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 749 [2021-11-06 22:11:52,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:11:52,918 INFO L225 Difference]: With dead ends: 5429 [2021-11-06 22:11:52,918 INFO L226 Difference]: Without dead ends: 3259 [2021-11-06 22:11:52,921 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 748 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-06 22:11:52,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3259 states. [2021-11-06 22:11:53,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3259 to 2207. [2021-11-06 22:11:53,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 2203 states have (on average 1.1339083068542897) internal successors, (2498), 2206 states have internal predecessors, (2498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:11:53,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 2498 transitions. [2021-11-06 22:11:53,503 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 2498 transitions. Word has length 749 [2021-11-06 22:11:53,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:11:53,503 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 2498 transitions. [2021-11-06 22:11:53,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:11:53,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 2498 transitions. [2021-11-06 22:11:53,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2021-11-06 22:11:53,508 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:11:53,508 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:11:53,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-06 22:11:53,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:11:53,709 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:11:53,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:11:53,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1814003898, now seen corresponding path program 1 times [2021-11-06 22:11:53,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:11:53,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350456720] [2021-11-06 22:11:53,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:11:53,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:11:53,770 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:11:53,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925752909] [2021-11-06 22:11:53,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:11:53,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:11:53,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:11:53,772 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:11:53,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-06 22:12:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:12:19,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 8436 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-06 22:12:19,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:12:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1444 trivial. 0 not checked. [2021-11-06 22:12:20,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:12:20,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350456720] [2021-11-06 22:12:20,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:12:20,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925752909] [2021-11-06 22:12:20,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925752909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:12:20,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:12:20,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 22:12:20,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453004954] [2021-11-06 22:12:20,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 22:12:20,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:12:20,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 22:12:20,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 22:12:20,385 INFO L87 Difference]: Start difference. First operand 2207 states and 2498 transitions. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:12:21,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:12:21,523 INFO L93 Difference]: Finished difference Result 5385 states and 6064 transitions. [2021-11-06 22:12:21,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 22:12:21,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 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 754 [2021-11-06 22:12:21,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:12:21,530 INFO L225 Difference]: With dead ends: 5385 [2021-11-06 22:12:21,530 INFO L226 Difference]: Without dead ends: 3207 [2021-11-06 22:12:21,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 753 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-06 22:12:21,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2021-11-06 22:12:22,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 2215. [2021-11-06 22:12:22,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 2211 states have (on average 1.133423790140208) internal successors, (2506), 2214 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:12:22,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 2506 transitions. [2021-11-06 22:12:22,129 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 2506 transitions. Word has length 754 [2021-11-06 22:12:22,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:12:22,129 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 2506 transitions. [2021-11-06 22:12:22,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:12:22,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 2506 transitions. [2021-11-06 22:12:22,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2021-11-06 22:12:22,134 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:12:22,134 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:12:22,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-06 22:12:22,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:12:22,335 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:12:22,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:12:22,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1548258123, now seen corresponding path program 1 times [2021-11-06 22:12:22,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:12:22,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815203680] [2021-11-06 22:12:22,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:12:22,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:12:22,417 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:12:22,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956454181] [2021-11-06 22:12:22,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:12:22,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:12:22,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:12:22,419 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:12:22,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-06 22:12:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:12:56,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 8471 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-06 22:12:56,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:12:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 1283 trivial. 0 not checked. [2021-11-06 22:12:57,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:12:57,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815203680] [2021-11-06 22:12:57,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:12:57,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956454181] [2021-11-06 22:12:57,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956454181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:12:57,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:12:57,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 22:12:57,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881612764] [2021-11-06 22:12:57,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 22:12:57,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:12:57,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 22:12:57,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 22:12:57,793 INFO L87 Difference]: Start difference. First operand 2215 states and 2506 transitions. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:12:58,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:12:58,394 INFO L93 Difference]: Finished difference Result 4417 states and 5014 transitions. [2021-11-06 22:12:58,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 22:12:58,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 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 759 [2021-11-06 22:12:58,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:12:58,397 INFO L225 Difference]: With dead ends: 4417 [2021-11-06 22:12:58,397 INFO L226 Difference]: Without dead ends: 2231 [2021-11-06 22:12:58,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 758 GetRequests, 757 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 22:12:58,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-11-06 22:12:58,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2021-11-06 22:12:58,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2227 states have (on average 1.132465199820386) internal successors, (2522), 2230 states have internal predecessors, (2522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:12:58,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2522 transitions. [2021-11-06 22:12:58,999 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2522 transitions. Word has length 759 [2021-11-06 22:12:58,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:12:58,999 INFO L470 AbstractCegarLoop]: Abstraction has 2231 states and 2522 transitions. [2021-11-06 22:12:58,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:12:58,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2522 transitions. [2021-11-06 22:12:59,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2021-11-06 22:12:59,004 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:12:59,004 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:12:59,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-06 22:12:59,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-11-06 22:12:59,205 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:12:59,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:12:59,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1395545763, now seen corresponding path program 1 times [2021-11-06 22:12:59,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:12:59,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881372076] [2021-11-06 22:12:59,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:12:59,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:12:59,279 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:12:59,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239304851] [2021-11-06 22:12:59,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:12:59,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:12:59,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:12:59,281 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:12:59,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-06 22:14:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:14:18,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 8519 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 22:14:18,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:14:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1537 backedges. 183 proven. 1 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2021-11-06 22:14:20,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:14:20,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881372076] [2021-11-06 22:14:20,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:14:20,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239304851] [2021-11-06 22:14:20,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239304851] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 22:14:20,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 22:14:20,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-11-06 22:14:20,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108476307] [2021-11-06 22:14:20,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 22:14:20,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:14:20,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 22:14:20,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:14:20,121 INFO L87 Difference]: Start difference. First operand 2231 states and 2522 transitions. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:14:20,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:14:20,756 INFO L93 Difference]: Finished difference Result 4449 states and 5046 transitions. [2021-11-06 22:14:20,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 22:14:20,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 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 767 [2021-11-06 22:14:20,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:14:20,760 INFO L225 Difference]: With dead ends: 4449 [2021-11-06 22:14:20,760 INFO L226 Difference]: Without dead ends: 2247 [2021-11-06 22:14:20,763 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 766 GetRequests, 764 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 22:14:20,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2021-11-06 22:14:21,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2247. [2021-11-06 22:14:21,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 2243 states have (on average 1.1315202853321444) internal successors, (2538), 2246 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:14:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 2538 transitions. [2021-11-06 22:14:21,362 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 2538 transitions. Word has length 767 [2021-11-06 22:14:21,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:14:21,363 INFO L470 AbstractCegarLoop]: Abstraction has 2247 states and 2538 transitions. [2021-11-06 22:14:21,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:14:21,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 2538 transitions. [2021-11-06 22:14:21,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2021-11-06 22:14:21,367 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:14:21,367 INFO L513 BasicCegarLoop]: trace histogram [16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:14:21,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-06 22:14:21,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-11-06 22:14:21,568 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:14:21,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:14:21,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1806618293, now seen corresponding path program 2 times [2021-11-06 22:14:21,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:14:21,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572031878] [2021-11-06 22:14:21,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:14:21,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:14:21,642 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:14:21,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737091543] [2021-11-06 22:14:21,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 22:14:21,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:14:21,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:14:21,643 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:14:21,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-06 22:15:39,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-06 22:15:39,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 22:15:39,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 4834 conjuncts, 95 conjunts are in the unsatisfiable core [2021-11-06 22:15:39,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:15:45,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-11-06 22:15:45,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:15:45,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572031878] [2021-11-06 22:15:45,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:15:45,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737091543] [2021-11-06 22:15:45,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737091543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 22:15:45,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 22:15:45,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-06 22:15:45,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144751313] [2021-11-06 22:15:45,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-06 22:15:45,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:15:45,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-06 22:15:45,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-11-06 22:15:45,916 INFO L87 Difference]: Start difference. First operand 2247 states and 2538 transitions. Second operand has 14 states, 14 states have (on average 28.857142857142858) internal successors, (404), 14 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:15:50,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:15:50,273 INFO L93 Difference]: Finished difference Result 7473 states and 8441 transitions. [2021-11-06 22:15:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-06 22:15:50,274 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 28.857142857142858) internal successors, (404), 14 states have internal predecessors, (404), 0 states have call successors, (0), 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 775 [2021-11-06 22:15:50,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:15:50,281 INFO L225 Difference]: With dead ends: 7473 [2021-11-06 22:15:50,281 INFO L226 Difference]: Without dead ends: 5255 [2021-11-06 22:15:50,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 765 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=402, Invalid=930, Unknown=0, NotChecked=0, Total=1332 [2021-11-06 22:15:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5255 states. [2021-11-06 22:15:50,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5255 to 2259. [2021-11-06 22:15:50,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2259 states, 2255 states have (on average 1.130820399113082) internal successors, (2550), 2258 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:15:50,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 2550 transitions. [2021-11-06 22:15:50,935 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 2550 transitions. Word has length 775 [2021-11-06 22:15:50,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:15:50,935 INFO L470 AbstractCegarLoop]: Abstraction has 2259 states and 2550 transitions. [2021-11-06 22:15:50,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 28.857142857142858) internal successors, (404), 14 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:15:50,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 2550 transitions. [2021-11-06 22:15:50,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2021-11-06 22:15:50,940 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:15:50,940 INFO L513 BasicCegarLoop]: trace histogram [16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:15:51,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-06 22:15:51,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-11-06 22:15:51,141 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:15:51,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:15:51,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1872879175, now seen corresponding path program 1 times [2021-11-06 22:15:51,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:15:51,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584160558] [2021-11-06 22:15:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:15:51,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:15:51,209 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:15:51,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440752299] [2021-11-06 22:15:51,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:15:51,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:15:51,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:15:51,211 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:15:51,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-06 22:16:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 22:16:28,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 8577 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 22:16:28,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 22:16:30,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 218 proven. 3 refuted. 0 times theorem prover too weak. 1472 trivial. 0 not checked. [2021-11-06 22:16:30,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 22:16:30,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584160558] [2021-11-06 22:16:30,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 22:16:30,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440752299] [2021-11-06 22:16:30,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440752299] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 22:16:30,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-06 22:16:30,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-11-06 22:16:30,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921030311] [2021-11-06 22:16:30,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 22:16:30,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 22:16:30,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 22:16:30,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:16:30,186 INFO L87 Difference]: Start difference. First operand 2259 states and 2550 transitions. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:16:30,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 22:16:30,941 INFO L93 Difference]: Finished difference Result 4505 states and 5102 transitions. [2021-11-06 22:16:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 22:16:30,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 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 775 [2021-11-06 22:16:30,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 22:16:30,944 INFO L225 Difference]: With dead ends: 4505 [2021-11-06 22:16:30,944 INFO L226 Difference]: Without dead ends: 2275 [2021-11-06 22:16:30,946 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 22:16:30,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2021-11-06 22:16:31,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2275. [2021-11-06 22:16:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2275 states, 2271 states have (on average 1.1298987230295023) internal successors, (2566), 2274 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:16:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 2566 transitions. [2021-11-06 22:16:31,589 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 2566 transitions. Word has length 775 [2021-11-06 22:16:31,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 22:16:31,590 INFO L470 AbstractCegarLoop]: Abstraction has 2275 states and 2566 transitions. [2021-11-06 22:16:31,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 22:16:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 2566 transitions. [2021-11-06 22:16:31,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2021-11-06 22:16:31,594 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 22:16:31,595 INFO L513 BasicCegarLoop]: trace histogram [24, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 22:16:31,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-06 22:16:31,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:16:31,796 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-06 22:16:31,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 22:16:31,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1100369505, now seen corresponding path program 2 times [2021-11-06 22:16:31,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 22:16:31,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830422685] [2021-11-06 22:16:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 22:16:31,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 22:16:31,890 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 22:16:31,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1518351816] [2021-11-06 22:16:31,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 22:16:31,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 22:16:31,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 22:16:31,908 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 22:16:31,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process Killed by 15