./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f8647b87d9679ff1ae7ce0cdb1a68cb57cbc5ac468f0ecd53079584cb92d51fd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:34:56,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:34:56,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:34:56,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:34:56,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:34:56,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:34:56,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:34:56,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:34:56,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:34:56,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:34:56,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:34:56,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:34:56,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:34:56,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:34:56,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:34:56,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:34:56,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:34:56,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:34:56,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:34:56,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:34:56,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:34:56,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:34:56,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:34:56,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:34:56,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:34:56,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:34:56,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:34:56,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:34:56,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:34:56,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:34:56,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:34:56,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:34:56,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:34:56,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:34:56,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:34:56,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:34:56,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:34:56,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:34:56,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:34:56,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:34:56,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:34:56,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:34:56,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:34:56,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:34:56,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:34:56,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:34:56,650 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:34:56,650 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:34:56,650 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:34:56,651 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:34:56,657 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:34:56,657 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:34:56,659 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:34:56,659 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:34:56,659 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:34:56,660 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:34:56,660 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:34:56,660 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:34:56,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:34:56,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:34:56,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:34:56,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:34:56,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:34:56,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:34:56,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:34:56,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:34:56,663 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:34:56,664 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:34:56,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:34:56,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:34:56,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:34:56,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:34:56,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:34:56,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:34:56,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:34:56,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:34:56,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:34:56,668 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:34:56,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:34:56,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:34:56,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:34:56,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:34:56,670 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8647b87d9679ff1ae7ce0cdb1a68cb57cbc5ac468f0ecd53079584cb92d51fd [2021-11-12 23:34:56,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:34:56,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:34:56,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:34:56,960 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:34:56,963 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:34:56,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2021-11-12 23:34:57,050 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/data/1b33b1036/288c6b758fa04a54b7beeedd9995ba3b/FLAG8563b039e [2021-11-12 23:34:57,596 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:34:57,597 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2021-11-12 23:34:57,615 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/data/1b33b1036/288c6b758fa04a54b7beeedd9995ba3b/FLAG8563b039e [2021-11-12 23:34:57,867 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/data/1b33b1036/288c6b758fa04a54b7beeedd9995ba3b [2021-11-12 23:34:57,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:34:57,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:34:57,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:34:57,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:34:57,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:34:57,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:34:57" (1/1) ... [2021-11-12 23:34:57,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ec087c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:57, skipping insertion in model container [2021-11-12 23:34:57,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:34:57" (1/1) ... [2021-11-12 23:34:57,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:34:57,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:34:58,220 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[6197,6210] [2021-11-12 23:34:58,243 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[9182,9195] [2021-11-12 23:34:58,268 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12241,12254] [2021-11-12 23:34:58,297 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[15128,15141] [2021-11-12 23:34:58,326 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[18343,18356] [2021-11-12 23:34:58,342 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[21435,21448] [2021-11-12 23:34:58,358 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[24486,24499] [2021-11-12 23:34:58,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:34:58,408 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:34:58,469 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[6197,6210] [2021-11-12 23:34:58,509 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[9182,9195] [2021-11-12 23:34:58,534 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12241,12254] [2021-11-12 23:34:58,553 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[15128,15141] [2021-11-12 23:34:58,596 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[18343,18356] [2021-11-12 23:34:58,627 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[21435,21448] [2021-11-12 23:34:58,663 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[24486,24499] [2021-11-12 23:34:58,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:34:58,726 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:34:58,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58 WrapperNode [2021-11-12 23:34:58,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:34:58,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:34:58,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:34:58,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:34:58,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (1/1) ... [2021-11-12 23:34:58,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (1/1) ... [2021-11-12 23:34:58,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:34:58,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:34:58,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:34:58,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:34:58,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (1/1) ... [2021-11-12 23:34:58,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (1/1) ... [2021-11-12 23:34:58,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (1/1) ... [2021-11-12 23:34:58,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (1/1) ... [2021-11-12 23:34:58,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (1/1) ... [2021-11-12 23:34:58,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (1/1) ... [2021-11-12 23:34:58,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (1/1) ... [2021-11-12 23:34:58,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:34:58,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:34:58,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:34:58,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:34:58,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (1/1) ... [2021-11-12 23:34:58,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:34:58,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:34:58,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:34:58,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:34:59,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:34:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:34:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:34:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:35:00,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:35:00,291 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:35:00,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:35:00 BoogieIcfgContainer [2021-11-12 23:35:00,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:35:00,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:35:00,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:35:00,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:35:00,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:34:57" (1/3) ... [2021-11-12 23:35:00,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4331ef0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:35:00, skipping insertion in model container [2021-11-12 23:35:00,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:34:58" (2/3) ... [2021-11-12 23:35:00,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4331ef0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:35:00, skipping insertion in model container [2021-11-12 23:35:00,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:35:00" (3/3) ... [2021-11-12 23:35:00,303 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2021-11-12 23:35:00,309 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:35:00,309 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-12 23:35:00,360 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:35:00,367 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=FINITE_AUTOMATA, 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 [2021-11-12 23:35:00,368 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-12 23:35:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 264 states, 256 states have (on average 1.796875) internal successors, (460), 263 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:00,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-12 23:35:00,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:00,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:00,405 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:00,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:00,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1191779176, now seen corresponding path program 1 times [2021-11-12 23:35:00,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:00,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822892956] [2021-11-12 23:35:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:00,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:00,809 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:00,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822892956] [2021-11-12 23:35:00,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822892956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:00,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:00,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:35:00,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102134360] [2021-11-12 23:35:00,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:00,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:35:00,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:00,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:35:00,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:35:00,862 INFO L87 Difference]: Start difference. First operand has 264 states, 256 states have (on average 1.796875) internal successors, (460), 263 states have internal predecessors, (460), 0 states have call successors, (0), 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 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:01,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:01,271 INFO L93 Difference]: Finished difference Result 361 states and 607 transitions. [2021-11-12 23:35:01,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:35:01,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2021-11-12 23:35:01,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:01,285 INFO L225 Difference]: With dead ends: 361 [2021-11-12 23:35:01,285 INFO L226 Difference]: Without dead ends: 230 [2021-11-12 23:35:01,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:35:01,301 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 1067 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 194.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.80ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 252.91ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:01,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1067 Valid, 271 Invalid, 181 Unknown, 0 Unchecked, 13.80ms Time], IncrementalHoareTripleChecker [19 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 252.91ms Time] [2021-11-12 23:35:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-12 23:35:01,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-11-12 23:35:01,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 223 states have (on average 1.2331838565022422) internal successors, (275), 229 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:01,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 275 transitions. [2021-11-12 23:35:01,398 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 275 transitions. Word has length 47 [2021-11-12 23:35:01,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:01,400 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 275 transitions. [2021-11-12 23:35:01,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:01,400 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 275 transitions. [2021-11-12 23:35:01,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-12 23:35:01,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:01,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:01,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:35:01,411 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:01,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:01,411 INFO L85 PathProgramCache]: Analyzing trace with hash 520818139, now seen corresponding path program 1 times [2021-11-12 23:35:01,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:01,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087148124] [2021-11-12 23:35:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:01,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:01,562 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:01,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087148124] [2021-11-12 23:35:01,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087148124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:01,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:01,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:35:01,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954335122] [2021-11-12 23:35:01,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:01,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:35:01,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:01,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:35:01,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:35:01,566 INFO L87 Difference]: Start difference. First operand 230 states and 275 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:01,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:01,740 INFO L93 Difference]: Finished difference Result 285 states and 338 transitions. [2021-11-12 23:35:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:35:01,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2021-11-12 23:35:01,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:01,744 INFO L225 Difference]: With dead ends: 285 [2021-11-12 23:35:01,745 INFO L226 Difference]: Without dead ends: 172 [2021-11-12 23:35:01,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:35:01,751 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 560 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.61ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 128.68ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:01,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 127 Invalid, 100 Unknown, 0 Unchecked, 3.61ms Time], IncrementalHoareTripleChecker [11 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 128.68ms Time] [2021-11-12 23:35:01,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-11-12 23:35:01,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2021-11-12 23:35:01,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 165 states have (on average 1.2242424242424241) internal successors, (202), 171 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:01,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 202 transitions. [2021-11-12 23:35:01,802 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 202 transitions. Word has length 47 [2021-11-12 23:35:01,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:01,803 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 202 transitions. [2021-11-12 23:35:01,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:01,808 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 202 transitions. [2021-11-12 23:35:01,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-12 23:35:01,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:01,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:01,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:35:01,810 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:01,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:01,811 INFO L85 PathProgramCache]: Analyzing trace with hash 45954227, now seen corresponding path program 1 times [2021-11-12 23:35:01,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:01,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133678319] [2021-11-12 23:35:01,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:01,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:01,965 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:01,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133678319] [2021-11-12 23:35:01,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133678319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:01,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:01,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:35:01,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711411829] [2021-11-12 23:35:01,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:01,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:35:01,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:01,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:35:01,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:35:01,974 INFO L87 Difference]: Start difference. First operand 172 states and 202 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:02,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:02,106 INFO L93 Difference]: Finished difference Result 239 states and 283 transitions. [2021-11-12 23:35:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:35:02,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2021-11-12 23:35:02,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:02,109 INFO L225 Difference]: With dead ends: 239 [2021-11-12 23:35:02,109 INFO L226 Difference]: Without dead ends: 149 [2021-11-12 23:35:02,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:35:02,117 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 490 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.61ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.77ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:02,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 110 Invalid, 77 Unknown, 0 Unchecked, 2.61ms Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 96.77ms Time] [2021-11-12 23:35:02,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-12 23:35:02,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-11-12 23:35:02,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 142 states have (on average 1.2253521126760563) internal successors, (174), 148 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:02,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 174 transitions. [2021-11-12 23:35:02,149 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 174 transitions. Word has length 47 [2021-11-12 23:35:02,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:02,150 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 174 transitions. [2021-11-12 23:35:02,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:02,151 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 174 transitions. [2021-11-12 23:35:02,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-12 23:35:02,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:02,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:02,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 23:35:02,156 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:02,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:02,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1209610819, now seen corresponding path program 1 times [2021-11-12 23:35:02,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:02,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566631932] [2021-11-12 23:35:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:02,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:02,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:02,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566631932] [2021-11-12 23:35:02,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566631932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:02,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:02,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-12 23:35:02,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242111630] [2021-11-12 23:35:02,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:02,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:35:02,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:02,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:35:02,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:35:02,372 INFO L87 Difference]: Start difference. First operand 149 states and 174 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:02,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:02,630 INFO L93 Difference]: Finished difference Result 286 states and 332 transitions. [2021-11-12 23:35:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:35:02,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-12 23:35:02,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:02,634 INFO L225 Difference]: With dead ends: 286 [2021-11-12 23:35:02,634 INFO L226 Difference]: Without dead ends: 212 [2021-11-12 23:35:02,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:35:02,646 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 767 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.64ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 161.59ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:02,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 278 Invalid, 220 Unknown, 0 Unchecked, 5.64ms Time], IncrementalHoareTripleChecker [21 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 161.59ms Time] [2021-11-12 23:35:02,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-12 23:35:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 149. [2021-11-12 23:35:02,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 142 states have (on average 1.2183098591549295) internal successors, (173), 148 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 173 transitions. [2021-11-12 23:35:02,668 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 173 transitions. Word has length 49 [2021-11-12 23:35:02,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:02,670 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 173 transitions. [2021-11-12 23:35:02,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:02,671 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 173 transitions. [2021-11-12 23:35:02,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-12 23:35:02,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:02,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:02,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 23:35:02,673 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:02,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:02,678 INFO L85 PathProgramCache]: Analyzing trace with hash 754421757, now seen corresponding path program 1 times [2021-11-12 23:35:02,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:02,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419373956] [2021-11-12 23:35:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:02,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:02,863 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:02,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419373956] [2021-11-12 23:35:02,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419373956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:02,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:02,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:35:02,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002986084] [2021-11-12 23:35:02,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:02,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:35:02,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:02,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:35:02,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:35:02,866 INFO L87 Difference]: Start difference. First operand 149 states and 173 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:03,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:03,374 INFO L93 Difference]: Finished difference Result 290 states and 344 transitions. [2021-11-12 23:35:03,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:35:03,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-12 23:35:03,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:03,378 INFO L225 Difference]: With dead ends: 290 [2021-11-12 23:35:03,378 INFO L226 Difference]: Without dead ends: 284 [2021-11-12 23:35:03,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:35:03,379 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 711 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 225.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.74ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 282.93ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:03,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [711 Valid, 569 Invalid, 445 Unknown, 0 Unchecked, 6.74ms Time], IncrementalHoareTripleChecker [34 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 282.93ms Time] [2021-11-12 23:35:03,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-11-12 23:35:03,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 149. [2021-11-12 23:35:03,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 142 states have (on average 1.2112676056338028) internal successors, (172), 148 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 172 transitions. [2021-11-12 23:35:03,399 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 172 transitions. Word has length 49 [2021-11-12 23:35:03,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:03,400 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 172 transitions. [2021-11-12 23:35:03,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:03,400 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 172 transitions. [2021-11-12 23:35:03,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-12 23:35:03,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:03,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:03,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 23:35:03,402 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:03,403 INFO L85 PathProgramCache]: Analyzing trace with hash -175435075, now seen corresponding path program 1 times [2021-11-12 23:35:03,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:03,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512725902] [2021-11-12 23:35:03,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:03,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:03,534 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:03,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512725902] [2021-11-12 23:35:03,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512725902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:03,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:03,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:35:03,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111697208] [2021-11-12 23:35:03,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:03,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:35:03,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:03,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:35:03,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:35:03,539 INFO L87 Difference]: Start difference. First operand 149 states and 172 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:04,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:04,042 INFO L93 Difference]: Finished difference Result 337 states and 404 transitions. [2021-11-12 23:35:04,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:35:04,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-12 23:35:04,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:04,046 INFO L225 Difference]: With dead ends: 337 [2021-11-12 23:35:04,046 INFO L226 Difference]: Without dead ends: 288 [2021-11-12 23:35:04,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:35:04,047 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 713 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 254.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.03ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 308.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:04,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [713 Valid, 747 Invalid, 484 Unknown, 0 Unchecked, 7.03ms Time], IncrementalHoareTripleChecker [17 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 308.64ms Time] [2021-11-12 23:35:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-12 23:35:04,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 149. [2021-11-12 23:35:04,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 142 states have (on average 1.204225352112676) internal successors, (171), 148 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:04,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 171 transitions. [2021-11-12 23:35:04,067 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 171 transitions. Word has length 49 [2021-11-12 23:35:04,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:04,068 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 171 transitions. [2021-11-12 23:35:04,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:04,068 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 171 transitions. [2021-11-12 23:35:04,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-12 23:35:04,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:04,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:04,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-12 23:35:04,070 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:04,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:04,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1893856322, now seen corresponding path program 1 times [2021-11-12 23:35:04,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:04,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848408230] [2021-11-12 23:35:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:04,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:04,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:04,450 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:04,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848408230] [2021-11-12 23:35:04,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848408230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:04,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:04,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-12 23:35:04,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961686176] [2021-11-12 23:35:04,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:04,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:35:04,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:04,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:35:04,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:35:04,452 INFO L87 Difference]: Start difference. First operand 149 states and 171 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 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) [2021-11-12 23:35:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:05,244 INFO L93 Difference]: Finished difference Result 394 states and 478 transitions. [2021-11-12 23:35:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:35:05,244 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 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 [2021-11-12 23:35:05,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:05,247 INFO L225 Difference]: With dead ends: 394 [2021-11-12 23:35:05,247 INFO L226 Difference]: Without dead ends: 352 [2021-11-12 23:35:05,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:35:05,248 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 1068 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 222.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.83ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 263.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:05,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1068 Valid, 1409 Invalid, 322 Unknown, 0 Unchecked, 9.83ms Time], IncrementalHoareTripleChecker [24 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 263.19ms Time] [2021-11-12 23:35:05,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-11-12 23:35:05,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 137. [2021-11-12 23:35:05,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 131 states have (on average 1.1984732824427482) internal successors, (157), 136 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:05,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 157 transitions. [2021-11-12 23:35:05,285 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 157 transitions. Word has length 50 [2021-11-12 23:35:05,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:05,286 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 157 transitions. [2021-11-12 23:35:05,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 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) [2021-11-12 23:35:05,287 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 157 transitions. [2021-11-12 23:35:05,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-12 23:35:05,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:05,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:05,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-12 23:35:05,288 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:05,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:05,289 INFO L85 PathProgramCache]: Analyzing trace with hash 883237538, now seen corresponding path program 1 times [2021-11-12 23:35:05,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:05,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190722802] [2021-11-12 23:35:05,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:05,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:05,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:05,695 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:05,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190722802] [2021-11-12 23:35:05,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190722802] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:05,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:05,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-12 23:35:05,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919023144] [2021-11-12 23:35:05,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:05,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:35:05,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:05,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:35:05,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:35:05,697 INFO L87 Difference]: Start difference. First operand 137 states and 157 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:06,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:06,556 INFO L93 Difference]: Finished difference Result 319 states and 366 transitions. [2021-11-12 23:35:06,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:35:06,557 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-12 23:35:06,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:06,559 INFO L225 Difference]: With dead ends: 319 [2021-11-12 23:35:06,559 INFO L226 Difference]: Without dead ends: 315 [2021-11-12 23:35:06,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-12 23:35:06,560 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 986 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 250.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.88ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 306.14ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:06,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 1299 Invalid, 425 Unknown, 0 Unchecked, 8.88ms Time], IncrementalHoareTripleChecker [44 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 306.14ms Time] [2021-11-12 23:35:06,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-11-12 23:35:06,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 133. [2021-11-12 23:35:06,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 128 states have (on average 1.1953125) internal successors, (153), 132 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:06,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2021-11-12 23:35:06,581 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 51 [2021-11-12 23:35:06,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:06,582 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2021-11-12 23:35:06,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2021-11-12 23:35:06,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-12 23:35:06,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:06,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:06,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-12 23:35:06,583 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:06,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:06,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1387229666, now seen corresponding path program 1 times [2021-11-12 23:35:06,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:06,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167626843] [2021-11-12 23:35:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:06,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:06,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:06,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167626843] [2021-11-12 23:35:06,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167626843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:06,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:06,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-12 23:35:06,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185362176] [2021-11-12 23:35:06,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:06,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:35:06,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:06,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:35:06,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:35:06,906 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:07,821 INFO L93 Difference]: Finished difference Result 349 states and 404 transitions. [2021-11-12 23:35:07,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 23:35:07,821 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-12 23:35:07,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:07,824 INFO L225 Difference]: With dead ends: 349 [2021-11-12 23:35:07,824 INFO L226 Difference]: Without dead ends: 315 [2021-11-12 23:35:07,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-11-12 23:35:07,826 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 704 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 268.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.17ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 326.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:07,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 1425 Invalid, 461 Unknown, 0 Unchecked, 7.17ms Time], IncrementalHoareTripleChecker [33 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 326.39ms Time] [2021-11-12 23:35:07,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-11-12 23:35:07,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 129. [2021-11-12 23:35:07,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 125 states have (on average 1.184) internal successors, (148), 128 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:07,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 148 transitions. [2021-11-12 23:35:07,849 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 148 transitions. Word has length 51 [2021-11-12 23:35:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:07,850 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 148 transitions. [2021-11-12 23:35:07,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 148 transitions. [2021-11-12 23:35:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-12 23:35:07,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:07,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:07,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-12 23:35:07,852 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:07,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:07,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1870868834, now seen corresponding path program 1 times [2021-11-12 23:35:07,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:07,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644900940] [2021-11-12 23:35:07,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:07,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:07,938 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:07,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644900940] [2021-11-12 23:35:07,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644900940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:07,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:07,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:35:07,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522406555] [2021-11-12 23:35:07,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:07,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:35:07,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:07,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:35:07,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:35:07,941 INFO L87 Difference]: Start difference. First operand 129 states and 148 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:08,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:08,289 INFO L93 Difference]: Finished difference Result 206 states and 236 transitions. [2021-11-12 23:35:08,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:35:08,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-12 23:35:08,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:08,290 INFO L225 Difference]: With dead ends: 206 [2021-11-12 23:35:08,290 INFO L226 Difference]: Without dead ends: 198 [2021-11-12 23:35:08,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:35:08,292 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 519 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 167.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.22ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 204.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:08,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [519 Valid, 455 Invalid, 331 Unknown, 0 Unchecked, 2.22ms Time], IncrementalHoareTripleChecker [28 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 204.78ms Time] [2021-11-12 23:35:08,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-12 23:35:08,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 129. [2021-11-12 23:35:08,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 125 states have (on average 1.176) internal successors, (147), 128 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:08,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 147 transitions. [2021-11-12 23:35:08,314 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 147 transitions. Word has length 53 [2021-11-12 23:35:08,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:08,314 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 147 transitions. [2021-11-12 23:35:08,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:08,315 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 147 transitions. [2021-11-12 23:35:08,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-12 23:35:08,315 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:08,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:08,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-12 23:35:08,316 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:08,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:08,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1523929374, now seen corresponding path program 1 times [2021-11-12 23:35:08,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:08,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842830030] [2021-11-12 23:35:08,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:08,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:08,407 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:08,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842830030] [2021-11-12 23:35:08,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842830030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:08,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:08,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:35:08,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733258813] [2021-11-12 23:35:08,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:08,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:35:08,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:08,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:35:08,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:35:08,410 INFO L87 Difference]: Start difference. First operand 129 states and 147 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:08,792 INFO L93 Difference]: Finished difference Result 252 states and 295 transitions. [2021-11-12 23:35:08,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:35:08,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-12 23:35:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:08,795 INFO L225 Difference]: With dead ends: 252 [2021-11-12 23:35:08,795 INFO L226 Difference]: Without dead ends: 202 [2021-11-12 23:35:08,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:35:08,796 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 375 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 188.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.14ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 222.92ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:08,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 465 Invalid, 340 Unknown, 0 Unchecked, 2.14ms Time], IncrementalHoareTripleChecker [11 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 222.92ms Time] [2021-11-12 23:35:08,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-12 23:35:08,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 129. [2021-11-12 23:35:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 125 states have (on average 1.168) internal successors, (146), 128 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:08,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 146 transitions. [2021-11-12 23:35:08,834 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 146 transitions. Word has length 53 [2021-11-12 23:35:08,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:08,834 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 146 transitions. [2021-11-12 23:35:08,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:08,835 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 146 transitions. [2021-11-12 23:35:08,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-12 23:35:08,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:08,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:08,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-12 23:35:08,836 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:08,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:08,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1841671298, now seen corresponding path program 1 times [2021-11-12 23:35:08,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:08,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003433084] [2021-11-12 23:35:08,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:08,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:09,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:09,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:09,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003433084] [2021-11-12 23:35:09,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003433084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:09,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:09,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:35:09,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098750871] [2021-11-12 23:35:09,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:09,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:35:09,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:09,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:35:09,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:35:09,042 INFO L87 Difference]: Start difference. First operand 129 states and 146 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:09,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:09,969 INFO L93 Difference]: Finished difference Result 290 states and 342 transitions. [2021-11-12 23:35:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 23:35:09,969 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-12 23:35:09,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:09,971 INFO L225 Difference]: With dead ends: 290 [2021-11-12 23:35:09,971 INFO L226 Difference]: Without dead ends: 282 [2021-11-12 23:35:09,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2021-11-12 23:35:09,973 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 968 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 363.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.04ms SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 443.92ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:09,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [968 Valid, 671 Invalid, 644 Unknown, 0 Unchecked, 5.04ms Time], IncrementalHoareTripleChecker [113 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 443.92ms Time] [2021-11-12 23:35:09,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-12 23:35:10,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 134. [2021-11-12 23:35:10,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 130 states have (on average 1.1615384615384616) internal successors, (151), 133 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:10,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 151 transitions. [2021-11-12 23:35:10,002 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 151 transitions. Word has length 53 [2021-11-12 23:35:10,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:10,002 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 151 transitions. [2021-11-12 23:35:10,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:10,002 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 151 transitions. [2021-11-12 23:35:10,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-12 23:35:10,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:10,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:10,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-12 23:35:10,004 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:10,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:10,004 INFO L85 PathProgramCache]: Analyzing trace with hash 85147155, now seen corresponding path program 1 times [2021-11-12 23:35:10,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:10,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657554848] [2021-11-12 23:35:10,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:10,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:10,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:10,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:10,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657554848] [2021-11-12 23:35:10,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657554848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:10,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:10,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:35:10,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817197446] [2021-11-12 23:35:10,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:10,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:35:10,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:10,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:35:10,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:35:10,097 INFO L87 Difference]: Start difference. First operand 134 states and 151 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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) [2021-11-12 23:35:10,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:10,482 INFO L93 Difference]: Finished difference Result 206 states and 233 transitions. [2021-11-12 23:35:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:35:10,483 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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 [2021-11-12 23:35:10,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:10,484 INFO L225 Difference]: With dead ends: 206 [2021-11-12 23:35:10,485 INFO L226 Difference]: Without dead ends: 198 [2021-11-12 23:35:10,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:35:10,486 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 434 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 183.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.39ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.03ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:10,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 522 Invalid, 391 Unknown, 0 Unchecked, 3.39ms Time], IncrementalHoareTripleChecker [23 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 229.03ms Time] [2021-11-12 23:35:10,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-12 23:35:10,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 129. [2021-11-12 23:35:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 125 states have (on average 1.16) internal successors, (145), 128 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:10,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 145 transitions. [2021-11-12 23:35:10,511 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 145 transitions. Word has length 54 [2021-11-12 23:35:10,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:10,512 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 145 transitions. [2021-11-12 23:35:10,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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) [2021-11-12 23:35:10,512 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 145 transitions. [2021-11-12 23:35:10,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 23:35:10,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:10,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:10,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-12 23:35:10,514 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:10,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:10,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1353414343, now seen corresponding path program 1 times [2021-11-12 23:35:10,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:10,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095716432] [2021-11-12 23:35:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:10,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:10,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:10,935 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:10,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095716432] [2021-11-12 23:35:10,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095716432] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:10,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:10,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-12 23:35:10,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516109798] [2021-11-12 23:35:10,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:10,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 23:35:10,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:10,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 23:35:10,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:35:10,937 INFO L87 Difference]: Start difference. First operand 129 states and 145 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 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) [2021-11-12 23:35:12,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:12,253 INFO L93 Difference]: Finished difference Result 479 states and 564 transitions. [2021-11-12 23:35:12,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-12 23:35:12,254 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 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 [2021-11-12 23:35:12,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:12,256 INFO L225 Difference]: With dead ends: 479 [2021-11-12 23:35:12,257 INFO L226 Difference]: Without dead ends: 473 [2021-11-12 23:35:12,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=757, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:35:12,258 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 860 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 644.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.69ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 790.06ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:12,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [860 Valid, 3451 Invalid, 1365 Unknown, 0 Unchecked, 16.69ms Time], IncrementalHoareTripleChecker [39 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 790.06ms Time] [2021-11-12 23:35:12,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-11-12 23:35:12,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 142. [2021-11-12 23:35:12,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.1666666666666667) internal successors, (161), 141 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 161 transitions. [2021-11-12 23:35:12,291 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 161 transitions. Word has length 55 [2021-11-12 23:35:12,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:12,291 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 161 transitions. [2021-11-12 23:35:12,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 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) [2021-11-12 23:35:12,292 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 161 transitions. [2021-11-12 23:35:12,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 23:35:12,292 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:12,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:12,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-12 23:35:12,293 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:12,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:12,294 INFO L85 PathProgramCache]: Analyzing trace with hash 635933575, now seen corresponding path program 1 times [2021-11-12 23:35:12,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:12,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780509451] [2021-11-12 23:35:12,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:12,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:12,728 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:12,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780509451] [2021-11-12 23:35:12,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780509451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:12,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:12,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-12 23:35:12,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906651141] [2021-11-12 23:35:12,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:12,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 23:35:12,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:12,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 23:35:12,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:35:12,730 INFO L87 Difference]: Start difference. First operand 142 states and 161 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 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) [2021-11-12 23:35:13,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:13,780 INFO L93 Difference]: Finished difference Result 339 states and 387 transitions. [2021-11-12 23:35:13,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 23:35:13,781 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 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 [2021-11-12 23:35:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:13,783 INFO L225 Difference]: With dead ends: 339 [2021-11-12 23:35:13,783 INFO L226 Difference]: Without dead ends: 330 [2021-11-12 23:35:13,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=849, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 23:35:13,788 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 892 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 462.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.84ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 590.50ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:13,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [892 Valid, 2109 Invalid, 894 Unknown, 0 Unchecked, 6.84ms Time], IncrementalHoareTripleChecker [54 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 590.50ms Time] [2021-11-12 23:35:13,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-12 23:35:13,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 146. [2021-11-12 23:35:13,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 142 states have (on average 1.1690140845070423) internal successors, (166), 145 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:13,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 166 transitions. [2021-11-12 23:35:13,823 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 166 transitions. Word has length 55 [2021-11-12 23:35:13,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:13,824 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 166 transitions. [2021-11-12 23:35:13,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 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) [2021-11-12 23:35:13,825 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 166 transitions. [2021-11-12 23:35:13,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 23:35:13,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:13,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:13,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-12 23:35:13,826 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:13,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:13,826 INFO L85 PathProgramCache]: Analyzing trace with hash -974454201, now seen corresponding path program 1 times [2021-11-12 23:35:13,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:13,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051020207] [2021-11-12 23:35:13,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:13,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:14,308 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:14,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051020207] [2021-11-12 23:35:14,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051020207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:14,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:14,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-12 23:35:14,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501870158] [2021-11-12 23:35:14,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:14,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 23:35:14,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:14,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 23:35:14,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:35:14,310 INFO L87 Difference]: Start difference. First operand 146 states and 166 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 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) [2021-11-12 23:35:15,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:15,650 INFO L93 Difference]: Finished difference Result 339 states and 386 transitions. [2021-11-12 23:35:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-12 23:35:15,651 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 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 [2021-11-12 23:35:15,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:15,653 INFO L225 Difference]: With dead ends: 339 [2021-11-12 23:35:15,653 INFO L226 Difference]: Without dead ends: 330 [2021-11-12 23:35:15,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2021-11-12 23:35:15,655 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 884 mSDsluCounter, 2166 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 554.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.47ms SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 660.33ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:15,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [884 Valid, 2392 Invalid, 980 Unknown, 0 Unchecked, 7.47ms Time], IncrementalHoareTripleChecker [59 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 660.33ms Time] [2021-11-12 23:35:15,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-12 23:35:15,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 152. [2021-11-12 23:35:15,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 148 states have (on average 1.162162162162162) internal successors, (172), 151 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:15,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 172 transitions. [2021-11-12 23:35:15,689 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 172 transitions. Word has length 55 [2021-11-12 23:35:15,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:15,689 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 172 transitions. [2021-11-12 23:35:15,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 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) [2021-11-12 23:35:15,690 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 172 transitions. [2021-11-12 23:35:15,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-12 23:35:15,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:15,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:15,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-12 23:35:15,691 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:15,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:15,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1713847366, now seen corresponding path program 1 times [2021-11-12 23:35:15,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:15,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695466978] [2021-11-12 23:35:15,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:15,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:16,472 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:16,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695466978] [2021-11-12 23:35:16,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695466978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:16,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:16,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-12 23:35:16,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347849999] [2021-11-12 23:35:16,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:16,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-12 23:35:16,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:16,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-12 23:35:16,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:35:16,474 INFO L87 Difference]: Start difference. First operand 152 states and 172 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 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) [2021-11-12 23:35:19,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:19,015 INFO L93 Difference]: Finished difference Result 539 states and 640 transitions. [2021-11-12 23:35:19,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-12 23:35:19,015 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 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 [2021-11-12 23:35:19,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:19,018 INFO L225 Difference]: With dead ends: 539 [2021-11-12 23:35:19,018 INFO L226 Difference]: Without dead ends: 533 [2021-11-12 23:35:19,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=222, Invalid=1038, Unknown=0, NotChecked=0, Total=1260 [2021-11-12 23:35:19,019 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1054 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1031.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 4895 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.87ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1232.20ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:19,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 4895 Invalid, 1944 Unknown, 0 Unchecked, 12.87ms Time], IncrementalHoareTripleChecker [48 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 1232.20ms Time] [2021-11-12 23:35:19,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2021-11-12 23:35:19,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 152. [2021-11-12 23:35:19,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 148 states have (on average 1.162162162162162) internal successors, (172), 151 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:19,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 172 transitions. [2021-11-12 23:35:19,056 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 172 transitions. Word has length 56 [2021-11-12 23:35:19,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:19,056 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 172 transitions. [2021-11-12 23:35:19,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 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) [2021-11-12 23:35:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 172 transitions. [2021-11-12 23:35:19,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-12 23:35:19,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:19,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:19,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-12 23:35:19,057 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:19,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:19,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1825517588, now seen corresponding path program 1 times [2021-11-12 23:35:19,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:19,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893349878] [2021-11-12 23:35:19,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:19,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:19,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:19,645 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:19,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893349878] [2021-11-12 23:35:19,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893349878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:19,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:19,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-12 23:35:19,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503144109] [2021-11-12 23:35:19,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:19,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 23:35:19,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:19,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 23:35:19,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:35:19,647 INFO L87 Difference]: Start difference. First operand 152 states and 172 transitions. Second operand has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 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) [2021-11-12 23:35:21,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:21,841 INFO L93 Difference]: Finished difference Result 349 states and 404 transitions. [2021-11-12 23:35:21,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-12 23:35:21,842 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 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 [2021-11-12 23:35:21,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:21,843 INFO L225 Difference]: With dead ends: 349 [2021-11-12 23:35:21,843 INFO L226 Difference]: Without dead ends: 336 [2021-11-12 23:35:21,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2021-11-12 23:35:21,845 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 766 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 488.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.37ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 575.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:21,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 2213 Invalid, 912 Unknown, 0 Unchecked, 15.37ms Time], IncrementalHoareTripleChecker [46 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 575.55ms Time] [2021-11-12 23:35:21,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-11-12 23:35:21,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 148. [2021-11-12 23:35:21,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 144 states have (on average 1.1527777777777777) internal successors, (166), 147 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:21,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2021-11-12 23:35:21,891 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 56 [2021-11-12 23:35:21,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:21,892 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2021-11-12 23:35:21,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 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) [2021-11-12 23:35:21,892 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2021-11-12 23:35:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-12 23:35:21,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:21,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:21,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-12 23:35:21,893 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:21,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:21,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1567076619, now seen corresponding path program 1 times [2021-11-12 23:35:21,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:21,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531071523] [2021-11-12 23:35:21,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:21,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:22,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:22,296 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:22,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531071523] [2021-11-12 23:35:22,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531071523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:22,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:22,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-12 23:35:22,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079866023] [2021-11-12 23:35:22,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:22,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:35:22,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:22,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:35:22,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:35:22,298 INFO L87 Difference]: Start difference. First operand 148 states and 166 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 13 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) [2021-11-12 23:35:23,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:23,164 INFO L93 Difference]: Finished difference Result 243 states and 277 transitions. [2021-11-12 23:35:23,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 23:35:23,165 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 13 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 [2021-11-12 23:35:23,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:23,166 INFO L225 Difference]: With dead ends: 243 [2021-11-12 23:35:23,167 INFO L226 Difference]: Without dead ends: 227 [2021-11-12 23:35:23,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2021-11-12 23:35:23,168 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 605 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 232.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.35ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 281.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:23,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 1109 Invalid, 411 Unknown, 0 Unchecked, 3.35ms Time], IncrementalHoareTripleChecker [25 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 281.02ms Time] [2021-11-12 23:35:23,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-12 23:35:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 142. [2021-11-12 23:35:23,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.1521739130434783) internal successors, (159), 141 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) [2021-11-12 23:35:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 159 transitions. [2021-11-12 23:35:23,203 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 159 transitions. Word has length 56 [2021-11-12 23:35:23,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:23,204 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 159 transitions. [2021-11-12 23:35:23,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 13 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) [2021-11-12 23:35:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 159 transitions. [2021-11-12 23:35:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-12 23:35:23,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:23,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:23,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-12 23:35:23,205 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:23,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:23,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1072008296, now seen corresponding path program 1 times [2021-11-12 23:35:23,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:23,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92126238] [2021-11-12 23:35:23,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:23,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:23,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:23,459 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:23,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92126238] [2021-11-12 23:35:23,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92126238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:23,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:23,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:35:23,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811335269] [2021-11-12 23:35:23,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:23,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:35:23,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:23,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:35:23,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:35:23,461 INFO L87 Difference]: Start difference. First operand 142 states and 159 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 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) [2021-11-12 23:35:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:24,206 INFO L93 Difference]: Finished difference Result 316 states and 378 transitions. [2021-11-12 23:35:24,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 23:35:24,219 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 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 [2021-11-12 23:35:24,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:24,221 INFO L225 Difference]: With dead ends: 316 [2021-11-12 23:35:24,221 INFO L226 Difference]: Without dead ends: 296 [2021-11-12 23:35:24,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:35:24,222 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 746 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 150.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.87ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 221.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:24,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 865 Invalid, 235 Unknown, 0 Unchecked, 2.87ms Time], IncrementalHoareTripleChecker [25 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 221.19ms Time] [2021-11-12 23:35:24,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-11-12 23:35:24,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 122. [2021-11-12 23:35:24,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 119 states have (on average 1.1596638655462186) internal successors, (138), 121 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) [2021-11-12 23:35:24,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 138 transitions. [2021-11-12 23:35:24,279 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 138 transitions. Word has length 56 [2021-11-12 23:35:24,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:24,280 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 138 transitions. [2021-11-12 23:35:24,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 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) [2021-11-12 23:35:24,280 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 138 transitions. [2021-11-12 23:35:24,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-12 23:35:24,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:24,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:24,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-12 23:35:24,281 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:24,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:24,282 INFO L85 PathProgramCache]: Analyzing trace with hash -576071502, now seen corresponding path program 1 times [2021-11-12 23:35:24,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:24,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779880084] [2021-11-12 23:35:24,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:24,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:24,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:24,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:24,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779880084] [2021-11-12 23:35:24,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779880084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:24,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:24,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-12 23:35:24,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622423908] [2021-11-12 23:35:24,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:24,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:35:24,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:24,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:35:24,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:35:24,682 INFO L87 Difference]: Start difference. First operand 122 states and 138 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 13 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) [2021-11-12 23:35:25,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:25,849 INFO L93 Difference]: Finished difference Result 311 states and 375 transitions. [2021-11-12 23:35:25,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-12 23:35:25,850 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 13 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 [2021-11-12 23:35:25,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:25,851 INFO L225 Difference]: With dead ends: 311 [2021-11-12 23:35:25,851 INFO L226 Difference]: Without dead ends: 305 [2021-11-12 23:35:25,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2021-11-12 23:35:25,853 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 710 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 316.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.43ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 371.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:25,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [710 Valid, 1705 Invalid, 587 Unknown, 0 Unchecked, 4.43ms Time], IncrementalHoareTripleChecker [29 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 371.00ms Time] [2021-11-12 23:35:25,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-11-12 23:35:25,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 122. [2021-11-12 23:35:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 119 states have (on average 1.1596638655462186) internal successors, (138), 121 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) [2021-11-12 23:35:25,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 138 transitions. [2021-11-12 23:35:25,904 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 138 transitions. Word has length 56 [2021-11-12 23:35:25,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:25,904 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 138 transitions. [2021-11-12 23:35:25,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 13 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) [2021-11-12 23:35:25,905 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 138 transitions. [2021-11-12 23:35:25,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-12 23:35:25,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:25,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:25,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-12 23:35:25,905 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:25,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:25,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1293552270, now seen corresponding path program 1 times [2021-11-12 23:35:25,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:25,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818843145] [2021-11-12 23:35:25,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:25,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:26,180 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:26,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818843145] [2021-11-12 23:35:26,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818843145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:26,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:26,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:35:26,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507461312] [2021-11-12 23:35:26,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:26,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:35:26,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:26,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:35:26,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:35:26,182 INFO L87 Difference]: Start difference. First operand 122 states and 138 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 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) [2021-11-12 23:35:26,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:26,846 INFO L93 Difference]: Finished difference Result 250 states and 297 transitions. [2021-11-12 23:35:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:35:26,848 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 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 [2021-11-12 23:35:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:26,850 INFO L225 Difference]: With dead ends: 250 [2021-11-12 23:35:26,850 INFO L226 Difference]: Without dead ends: 238 [2021-11-12 23:35:26,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:35:26,851 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 326 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 192.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.35ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 232.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:26,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 1473 Invalid, 355 Unknown, 0 Unchecked, 3.35ms Time], IncrementalHoareTripleChecker [6 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 232.67ms Time] [2021-11-12 23:35:26,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-11-12 23:35:26,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 110. [2021-11-12 23:35:26,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.1666666666666667) internal successors, (126), 109 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:26,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 126 transitions. [2021-11-12 23:35:26,898 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 126 transitions. Word has length 56 [2021-11-12 23:35:26,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:26,898 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 126 transitions. [2021-11-12 23:35:26,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 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) [2021-11-12 23:35:26,898 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 126 transitions. [2021-11-12 23:35:26,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-12 23:35:26,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:26,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:26,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-12 23:35:26,899 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:26,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:26,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2029328315, now seen corresponding path program 1 times [2021-11-12 23:35:26,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:26,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846422758] [2021-11-12 23:35:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:26,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:27,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:27,303 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:27,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846422758] [2021-11-12 23:35:27,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846422758] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:27,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:27,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-12 23:35:27,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127344663] [2021-11-12 23:35:27,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:27,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 23:35:27,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:27,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 23:35:27,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:35:27,305 INFO L87 Difference]: Start difference. First operand 110 states and 126 transitions. Second operand has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:29,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:29,104 INFO L93 Difference]: Finished difference Result 436 states and 535 transitions. [2021-11-12 23:35:29,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-12 23:35:29,104 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-12 23:35:29,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:29,107 INFO L225 Difference]: With dead ends: 436 [2021-11-12 23:35:29,107 INFO L226 Difference]: Without dead ends: 430 [2021-11-12 23:35:29,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=271, Invalid=1061, Unknown=0, NotChecked=0, Total=1332 [2021-11-12 23:35:29,110 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 604 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 583.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 3441 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.66ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 696.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:29,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [604 Valid, 3441 Invalid, 1196 Unknown, 0 Unchecked, 8.66ms Time], IncrementalHoareTripleChecker [31 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 696.43ms Time] [2021-11-12 23:35:29,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-11-12 23:35:29,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 90. [2021-11-12 23:35:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.1573033707865168) internal successors, (103), 89 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:29,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2021-11-12 23:35:29,146 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 57 [2021-11-12 23:35:29,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:29,147 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2021-11-12 23:35:29,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:29,147 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2021-11-12 23:35:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-12 23:35:29,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:29,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:29,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-12 23:35:29,149 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash 867483536, now seen corresponding path program 1 times [2021-11-12 23:35:29,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:29,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479118440] [2021-11-12 23:35:29,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:29,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:29,191 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:29,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479118440] [2021-11-12 23:35:29,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479118440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:29,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:29,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:35:29,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218509080] [2021-11-12 23:35:29,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:29,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:35:29,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:29,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:35:29,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:35:29,194 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:29,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:29,281 INFO L93 Difference]: Finished difference Result 150 states and 181 transitions. [2021-11-12 23:35:29,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:35:29,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2021-11-12 23:35:29,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:29,283 INFO L225 Difference]: With dead ends: 150 [2021-11-12 23:35:29,283 INFO L226 Difference]: Without dead ends: 120 [2021-11-12 23:35:29,284 INFO L932 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 [2021-11-12 23:35:29,284 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 42 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.42ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.46ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:29,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 191 Invalid, 20 Unknown, 0 Unchecked, 0.42ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 19.46ms Time] [2021-11-12 23:35:29,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-12 23:35:29,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2021-11-12 23:35:29,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.1946902654867257) internal successors, (135), 113 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2021-11-12 23:35:29,348 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 68 [2021-11-12 23:35:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:29,349 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2021-11-12 23:35:29,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2021-11-12 23:35:29,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-12 23:35:29,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:29,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:29,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-12 23:35:29,351 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:29,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:29,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1603132812, now seen corresponding path program 1 times [2021-11-12 23:35:29,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:29,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740597713] [2021-11-12 23:35:29,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:29,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:29,393 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:29,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740597713] [2021-11-12 23:35:29,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740597713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:29,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:29,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:35:29,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392758031] [2021-11-12 23:35:29,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:29,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:35:29,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:29,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:35:29,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:35:29,396 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:29,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:29,544 INFO L93 Difference]: Finished difference Result 222 states and 277 transitions. [2021-11-12 23:35:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:35:29,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2021-11-12 23:35:29,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:29,547 INFO L225 Difference]: With dead ends: 222 [2021-11-12 23:35:29,547 INFO L226 Difference]: Without dead ends: 168 [2021-11-12 23:35:29,547 INFO L932 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 [2021-11-12 23:35:29,548 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 35 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.42ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:29,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 192 Invalid, 20 Unknown, 0 Unchecked, 0.42ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 19.78ms Time] [2021-11-12 23:35:29,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-12 23:35:29,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 158. [2021-11-12 23:35:29,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.2292993630573248) internal successors, (193), 157 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:29,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 193 transitions. [2021-11-12 23:35:29,643 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 193 transitions. Word has length 71 [2021-11-12 23:35:29,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:29,644 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 193 transitions. [2021-11-12 23:35:29,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:29,644 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 193 transitions. [2021-11-12 23:35:29,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-12 23:35:29,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:29,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:29,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-12 23:35:29,646 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:29,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:29,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1066622339, now seen corresponding path program 1 times [2021-11-12 23:35:29,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:29,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393022694] [2021-11-12 23:35:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:29,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:29,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:29,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393022694] [2021-11-12 23:35:29,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393022694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:29,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:29,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:35:29,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327269417] [2021-11-12 23:35:29,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:29,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:35:29,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:29,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:35:29,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:35:29,691 INFO L87 Difference]: Start difference. First operand 158 states and 193 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:29,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:29,931 INFO L93 Difference]: Finished difference Result 354 states and 451 transitions. [2021-11-12 23:35:29,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:35:29,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2021-11-12 23:35:29,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:29,934 INFO L225 Difference]: With dead ends: 354 [2021-11-12 23:35:29,934 INFO L226 Difference]: Without dead ends: 256 [2021-11-12 23:35:29,935 INFO L932 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 [2021-11-12 23:35:29,935 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 25 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:29,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 193 Invalid, 21 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 22.64ms Time] [2021-11-12 23:35:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-12 23:35:30,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2021-11-12 23:35:30,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.2531645569620253) internal successors, (297), 237 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:30,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 297 transitions. [2021-11-12 23:35:30,106 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 297 transitions. Word has length 74 [2021-11-12 23:35:30,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:30,106 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 297 transitions. [2021-11-12 23:35:30,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:30,106 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 297 transitions. [2021-11-12 23:35:30,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-12 23:35:30,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:30,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:30,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-12 23:35:30,107 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:30,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:30,107 INFO L85 PathProgramCache]: Analyzing trace with hash -154453370, now seen corresponding path program 1 times [2021-11-12 23:35:30,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:30,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989344708] [2021-11-12 23:35:30,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:30,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:30,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:30,164 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:30,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989344708] [2021-11-12 23:35:30,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989344708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:30,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:30,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-12 23:35:30,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742449226] [2021-11-12 23:35:30,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:30,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:35:30,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:30,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:35:30,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:35:30,168 INFO L87 Difference]: Start difference. First operand 238 states and 297 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:30,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:30,851 INFO L93 Difference]: Finished difference Result 815 states and 1036 transitions. [2021-11-12 23:35:30,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:35:30,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2021-11-12 23:35:30,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:30,856 INFO L225 Difference]: With dead ends: 815 [2021-11-12 23:35:30,856 INFO L226 Difference]: Without dead ends: 637 [2021-11-12 23:35:30,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:35:30,857 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 299 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.63ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.26ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:30,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 385 Invalid, 84 Unknown, 0 Unchecked, 1.63ms Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 61.26ms Time] [2021-11-12 23:35:30,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-11-12 23:35:31,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 346. [2021-11-12 23:35:31,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.2434782608695651) internal successors, (429), 345 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) [2021-11-12 23:35:31,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 429 transitions. [2021-11-12 23:35:31,167 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 429 transitions. Word has length 77 [2021-11-12 23:35:31,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:31,167 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 429 transitions. [2021-11-12 23:35:31,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:31,167 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 429 transitions. [2021-11-12 23:35:31,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-12 23:35:31,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:31,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:31,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-12 23:35:31,169 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:31,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:31,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1471249257, now seen corresponding path program 1 times [2021-11-12 23:35:31,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:31,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602809153] [2021-11-12 23:35:31,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:31,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:31,264 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:31,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602809153] [2021-11-12 23:35:31,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602809153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:31,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:31,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:35:31,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790890414] [2021-11-12 23:35:31,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:31,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:35:31,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:31,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:35:31,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:35:31,266 INFO L87 Difference]: Start difference. First operand 346 states and 429 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:31,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:31,716 INFO L93 Difference]: Finished difference Result 750 states and 943 transitions. [2021-11-12 23:35:31,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:35:31,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-11-12 23:35:31,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:31,719 INFO L225 Difference]: With dead ends: 750 [2021-11-12 23:35:31,719 INFO L226 Difference]: Without dead ends: 464 [2021-11-12 23:35:31,720 INFO L932 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 [2021-11-12 23:35:31,721 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 51 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.44ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.06ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:31,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 150 Invalid, 21 Unknown, 0 Unchecked, 0.44ms Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 26.06ms Time] [2021-11-12 23:35:31,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-11-12 23:35:32,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2021-11-12 23:35:32,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.2407809110629067) internal successors, (572), 461 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:32,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 572 transitions. [2021-11-12 23:35:32,069 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 572 transitions. Word has length 79 [2021-11-12 23:35:32,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:32,070 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 572 transitions. [2021-11-12 23:35:32,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:32,070 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 572 transitions. [2021-11-12 23:35:32,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-12 23:35:32,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:32,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:32,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-12 23:35:32,072 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:32,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:32,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1401985182, now seen corresponding path program 1 times [2021-11-12 23:35:32,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:32,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011423578] [2021-11-12 23:35:32,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:32,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:32,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:32,116 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:32,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011423578] [2021-11-12 23:35:32,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011423578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:32,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:32,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:35:32,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283499053] [2021-11-12 23:35:32,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:32,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:35:32,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:32,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:35:32,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:35:32,118 INFO L87 Difference]: Start difference. First operand 462 states and 572 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:32,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:32,494 INFO L93 Difference]: Finished difference Result 866 states and 1081 transitions. [2021-11-12 23:35:32,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:35:32,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-11-12 23:35:32,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:32,497 INFO L225 Difference]: With dead ends: 866 [2021-11-12 23:35:32,497 INFO L226 Difference]: Without dead ends: 464 [2021-11-12 23:35:32,498 INFO L932 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 [2021-11-12 23:35:32,499 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 23 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.04ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:32,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 150 Invalid, 26 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 25.04ms Time] [2021-11-12 23:35:32,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-11-12 23:35:32,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2021-11-12 23:35:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.2386117136659436) internal successors, (571), 461 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:32,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 571 transitions. [2021-11-12 23:35:32,865 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 571 transitions. Word has length 79 [2021-11-12 23:35:32,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:32,865 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 571 transitions. [2021-11-12 23:35:32,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:32,866 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 571 transitions. [2021-11-12 23:35:32,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-12 23:35:32,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:32,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:32,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-12 23:35:32,867 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:32,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:32,868 INFO L85 PathProgramCache]: Analyzing trace with hash 259684117, now seen corresponding path program 1 times [2021-11-12 23:35:32,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:32,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087780657] [2021-11-12 23:35:32,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:32,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:32,946 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:32,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087780657] [2021-11-12 23:35:32,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087780657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:32,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:32,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:35:32,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314373297] [2021-11-12 23:35:32,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:32,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:35:32,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:32,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:35:32,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:35:32,949 INFO L87 Difference]: Start difference. First operand 462 states and 571 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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) [2021-11-12 23:35:33,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:33,501 INFO L93 Difference]: Finished difference Result 609 states and 747 transitions. [2021-11-12 23:35:33,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:35:33,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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 [2021-11-12 23:35:33,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:33,504 INFO L225 Difference]: With dead ends: 609 [2021-11-12 23:35:33,504 INFO L226 Difference]: Without dead ends: 607 [2021-11-12 23:35:33,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:35:33,505 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 210 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.57ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.63ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:33,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 602 Invalid, 125 Unknown, 0 Unchecked, 1.57ms Time], IncrementalHoareTripleChecker [12 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 82.63ms Time] [2021-11-12 23:35:33,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2021-11-12 23:35:33,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 462. [2021-11-12 23:35:33,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.2212581344902387) internal successors, (563), 461 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 563 transitions. [2021-11-12 23:35:33,919 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 563 transitions. Word has length 80 [2021-11-12 23:35:33,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:33,920 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 563 transitions. [2021-11-12 23:35:33,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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) [2021-11-12 23:35:33,920 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 563 transitions. [2021-11-12 23:35:33,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-12 23:35:33,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:33,921 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-12 23:35:33,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-12 23:35:33,922 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:33,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:33,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1210640113, now seen corresponding path program 1 times [2021-11-12 23:35:33,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:33,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563867318] [2021-11-12 23:35:33,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:33,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:34,097 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:35:34,097 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:34,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563867318] [2021-11-12 23:35:34,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563867318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:34,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:34,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:35:34,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741206252] [2021-11-12 23:35:34,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:34,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:35:34,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:34,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:35:34,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:35:34,099 INFO L87 Difference]: Start difference. First operand 462 states and 563 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 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) [2021-11-12 23:35:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:36,047 INFO L93 Difference]: Finished difference Result 1999 states and 2450 transitions. [2021-11-12 23:35:36,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-12 23:35:36,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 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 93 [2021-11-12 23:35:36,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:36,054 INFO L225 Difference]: With dead ends: 1999 [2021-11-12 23:35:36,055 INFO L226 Difference]: Without dead ends: 1590 [2021-11-12 23:35:36,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:35:36,057 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 1147 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 314.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.60ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 383.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:36,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 678 Invalid, 705 Unknown, 0 Unchecked, 4.60ms Time], IncrementalHoareTripleChecker [91 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 383.80ms Time] [2021-11-12 23:35:36,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2021-11-12 23:35:36,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 467. [2021-11-12 23:35:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 466 states have (on average 1.2188841201716738) internal successors, (568), 466 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 568 transitions. [2021-11-12 23:35:36,457 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 568 transitions. Word has length 93 [2021-11-12 23:35:36,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:36,457 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 568 transitions. [2021-11-12 23:35:36,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 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) [2021-11-12 23:35:36,457 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 568 transitions. [2021-11-12 23:35:36,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-12 23:35:36,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:36,459 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-12 23:35:36,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-12 23:35:36,459 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:36,460 INFO L85 PathProgramCache]: Analyzing trace with hash -551316176, now seen corresponding path program 1 times [2021-11-12 23:35:36,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:36,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536476537] [2021-11-12 23:35:36,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:36,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:36,557 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:35:36,557 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:36,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536476537] [2021-11-12 23:35:36,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536476537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:36,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:36,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:35:36,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686965301] [2021-11-12 23:35:36,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:36,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:35:36,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:36,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:35:36,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:35:36,560 INFO L87 Difference]: Start difference. First operand 467 states and 568 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:37,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:37,414 INFO L93 Difference]: Finished difference Result 1135 states and 1392 transitions. [2021-11-12 23:35:37,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:35:37,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 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 94 [2021-11-12 23:35:37,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:37,417 INFO L225 Difference]: With dead ends: 1135 [2021-11-12 23:35:37,418 INFO L226 Difference]: Without dead ends: 726 [2021-11-12 23:35:37,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:35:37,419 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 342 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.05ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 149.27ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:37,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 289 Invalid, 260 Unknown, 0 Unchecked, 2.05ms Time], IncrementalHoareTripleChecker [14 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 149.27ms Time] [2021-11-12 23:35:37,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-11-12 23:35:37,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 462. [2021-11-12 23:35:37,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.2190889370932756) internal successors, (562), 461 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:37,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 562 transitions. [2021-11-12 23:35:37,747 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 562 transitions. Word has length 94 [2021-11-12 23:35:37,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:37,748 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 562 transitions. [2021-11-12 23:35:37,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:37,748 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 562 transitions. [2021-11-12 23:35:37,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-12 23:35:37,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:37,749 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-12 23:35:37,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-12 23:35:37,750 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:37,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:37,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1797156214, now seen corresponding path program 1 times [2021-11-12 23:35:37,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:37,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053516142] [2021-11-12 23:35:37,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:37,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:39,346 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:39,346 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:39,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053516142] [2021-11-12 23:35:39,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053516142] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:35:39,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143689917] [2021-11-12 23:35:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:39,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:35:39,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:35:39,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:35:39,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 23:35:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:39,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-12 23:35:39,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:35:44,329 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:35:44,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:35:47,802 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:35:47,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143689917] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:47,802 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:35:47,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 17] imperfect sequences [27] total 59 [2021-11-12 23:35:47,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538873850] [2021-11-12 23:35:47,803 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:47,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-12 23:35:47,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:35:47,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-12 23:35:47,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=3289, Unknown=0, NotChecked=0, Total=3540 [2021-11-12 23:35:47,806 INFO L87 Difference]: Start difference. First operand 462 states and 562 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:55,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:55,143 INFO L93 Difference]: Finished difference Result 3425 states and 4224 transitions. [2021-11-12 23:35:55,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-12 23:35:55,151 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 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 95 [2021-11-12 23:35:55,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:55,162 INFO L225 Difference]: With dead ends: 3425 [2021-11-12 23:35:55,162 INFO L226 Difference]: Without dead ends: 3015 [2021-11-12 23:35:55,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1284 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=744, Invalid=6566, Unknown=0, NotChecked=0, Total=7310 [2021-11-12 23:35:55,166 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 1659 mSDsluCounter, 3652 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1400.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 3789 SdHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.62ms SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1614.44ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:55,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1659 Valid, 3789 Invalid, 1793 Unknown, 0 Unchecked, 13.62ms Time], IncrementalHoareTripleChecker [104 Valid, 1689 Invalid, 0 Unknown, 0 Unchecked, 1614.44ms Time] [2021-11-12 23:35:55,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2021-11-12 23:35:55,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 474. [2021-11-12 23:35:55,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 473 states have (on average 1.215644820295983) internal successors, (575), 473 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:55,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 575 transitions. [2021-11-12 23:35:55,547 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 575 transitions. Word has length 95 [2021-11-12 23:35:55,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:55,547 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 575 transitions. [2021-11-12 23:35:55,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:55,548 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 575 transitions. [2021-11-12 23:35:55,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-12 23:35:55,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:55,549 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-12 23:35:55,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-12 23:35:55,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-11-12 23:35:55,763 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:35:55,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:55,763 INFO L85 PathProgramCache]: Analyzing trace with hash -126935130, now seen corresponding path program 1 times [2021-11-12 23:35:55,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:35:55,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284747359] [2021-11-12 23:35:55,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:55,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:35:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:57,125 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:35:57,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:35:57,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284747359] [2021-11-12 23:35:57,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284747359] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:35:57,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128465654] [2021-11-12 23:35:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:57,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:35:57,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:35:57,126 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:35:57,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 23:35:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:57,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-12 23:35:57,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:36:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:36:02,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:36:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:36:30,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128465654] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:36:30,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [382631433] [2021-11-12 23:36:30,182 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2021-11-12 23:36:30,182 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:36:30,187 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:36:30,193 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:36:30,194 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:36:30,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,435 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:30,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:36:30,439 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:30,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:36:30,442 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:30,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:36:30,443 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:30,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:36:30,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-11-12 23:36:30,512 INFO L446 ElimStorePlain]: Different costs {0=[v_~nodes~0.offset_9, v_~nodes~0.base_9, |v_#length_9|], 21=[|v_#valid_10|]} [2021-11-12 23:36:30,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:36:30,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:30,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:30,559 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:36:30,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:30,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,624 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:36:30,625 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:36:30,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:36:30,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:30,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:30,628 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:36:30,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:30,663 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:36:30,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:30,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:30,692 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 23:36:30,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:30,727 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:36:30,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:36:30,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:36:30,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:36:30,771 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-12 23:36:30,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:30,804 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-12 23:36:30,832 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:36:30,833 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:358, output treesize:339 [2021-11-12 23:36:30,922 INFO L180 QuantifierPusher]: treesize reduction 45, result has 88.9 percent of original size [2021-11-12 23:36:30,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-11-12 23:36:30,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:30,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-11-12 23:36:31,021 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.3 percent of original size [2021-11-12 23:36:31,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 395 [2021-11-12 23:36:31,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 426 [2021-11-12 23:36:31,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 454 [2021-11-12 23:36:31,199 INFO L180 QuantifierPusher]: treesize reduction 13, result has 97.4 percent of original size [2021-11-12 23:36:31,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 482 [2021-11-12 23:36:31,228 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 491 [2021-11-12 23:36:31,271 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.4 percent of original size [2021-11-12 23:36:31,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 500 [2021-11-12 23:36:31,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 507 [2021-11-12 23:36:31,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 501 [2021-11-12 23:36:31,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 501 [2021-11-12 23:36:31,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 513 [2021-11-12 23:36:31,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 520 [2021-11-12 23:36:31,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 514 [2021-11-12 23:36:31,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 514 [2021-11-12 23:36:31,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 526 [2021-11-12 23:36:31,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 532 [2021-11-12 23:36:31,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 532 [2021-11-12 23:36:31,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:31,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 535 [2021-11-12 23:36:31,759 INFO L180 QuantifierPusher]: treesize reduction 14, result has 97.6 percent of original size [2021-11-12 23:36:31,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 556 [2021-11-12 23:36:31,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:31,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:31,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:32,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 556 [2021-11-12 23:36:32,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 556 [2021-11-12 23:36:32,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 582 [2021-11-12 23:36:32,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:32,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-12 23:36:32,316 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:32,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,318 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:32,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,320 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:32,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:32,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:32,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:32,326 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:32,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:32,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,331 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:32,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:32,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:36:32,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:36:32,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-12 23:36:32,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:36:32,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:32,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:32,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:32,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,156 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,158 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,161 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:33,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:33,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:33,167 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,169 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,171 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:36:33,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:36:33,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-12 23:36:33,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:36:33,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 739 [2021-11-12 23:36:33,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,560 INFO L180 QuantifierPusher]: treesize reduction 12, result has 98.0 percent of original size [2021-11-12 23:36:33,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 577 [2021-11-12 23:36:33,637 INFO L180 QuantifierPusher]: treesize reduction 12, result has 98.1 percent of original size [2021-11-12 23:36:33,641 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,642 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,643 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,646 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:36:33,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:36:33,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-12 23:36:33,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-12 23:36:33,652 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,654 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:33,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:33,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-12 23:36:33,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-12 23:36:33,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:36:33,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:33,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:34,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 621 [2021-11-12 23:36:34,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:34,565 INFO L180 QuantifierPusher]: treesize reduction 18, result has 97.0 percent of original size [2021-11-12 23:36:34,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 554 [2021-11-12 23:36:34,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:34,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 570 [2021-11-12 23:36:34,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:34,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 573 [2021-11-12 23:36:34,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:34,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 578 [2021-11-12 23:36:34,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:34,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 578 [2021-11-12 23:36:34,881 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.5 percent of original size [2021-11-12 23:36:34,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 571 [2021-11-12 23:36:34,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 527 [2021-11-12 23:36:35,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,298 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:36:35,305 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,307 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,310 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:35,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:35,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:35,319 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,321 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,324 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:36:35,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:36:35,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-12 23:36:35,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 594 [2021-11-12 23:36:35,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,687 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,689 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,692 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:35,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:35,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:35,697 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,699 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,700 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:35,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:36:35,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:36:35,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-12 23:36:35,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 543 [2021-11-12 23:36:35,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:35,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 515 [2021-11-12 23:36:35,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:35,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 508 [2021-11-12 23:36:36,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,061 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:36,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,072 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:36,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,075 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:36,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,077 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:36,078 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:36:36,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:36:36,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-12 23:36:36,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-12 23:36:36,084 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:36,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,095 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:36,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-12 23:36:36,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-12 23:36:36,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 539 [2021-11-12 23:36:36,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 481 [2021-11-12 23:36:36,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 505 [2021-11-12 23:36:36,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 524 [2021-11-12 23:36:36,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 530 [2021-11-12 23:36:36,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 538 [2021-11-12 23:36:36,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:36,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 538 [2021-11-12 23:36:36,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:36,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 506 [2021-11-12 23:36:37,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,039 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,041 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,044 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,044 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,045 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:37,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:37,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:37,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:37,052 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:37,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:37,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 557 [2021-11-12 23:36:37,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,350 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,352 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:37,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:37,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:37,356 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,357 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,358 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,358 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,359 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:37,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:37,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:37,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 514 [2021-11-12 23:36:37,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 492 [2021-11-12 23:36:37,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 485 [2021-11-12 23:36:37,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,656 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,659 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,661 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:37,663 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:37,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:37,664 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,666 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,667 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:37,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:37,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:37,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:37,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 507 [2021-11-12 23:36:37,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:37,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:37,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 461 [2021-11-12 23:36:37,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 488 [2021-11-12 23:36:38,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 507 [2021-11-12 23:36:38,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 513 [2021-11-12 23:36:38,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 521 [2021-11-12 23:36:38,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 521 [2021-11-12 23:36:38,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 506 [2021-11-12 23:36:38,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,488 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:38,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,490 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:38,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,492 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:38,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,494 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:38,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:38,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:38,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:38,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:38,501 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:38,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,503 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:38,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:38,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:38,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:38,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 562 [2021-11-12 23:36:38,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:38,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,154 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,156 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,158 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,160 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:39,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:39,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:39,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:39,171 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,176 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:39,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:39,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 514 [2021-11-12 23:36:39,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 492 [2021-11-12 23:36:39,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,641 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,642 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,643 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,645 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,646 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:36:39,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:39,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:39,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:39,651 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,653 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:36:39,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:36:39,655 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:36:39,668 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 507 [2021-11-12 23:36:39,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:39,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 485 [2021-11-12 23:36:39,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:39,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,078 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:40,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 461 [2021-11-12 23:36:40,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:40,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 488 [2021-11-12 23:36:40,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:40,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 507 [2021-11-12 23:36:40,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:40,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 513 [2021-11-12 23:36:40,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:40,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 521 [2021-11-12 23:36:40,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:40,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:41,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:41,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:36:41,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 488 [2021-11-12 23:36:41,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:41,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:41,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:36:41,203 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:38:07,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:38:07,255 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:38:07,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 69 [2021-11-12 23:38:07,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940031151] [2021-11-12 23:38:07,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:38:07,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-12 23:38:07,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:38:07,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-12 23:38:07,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2049, Invalid=14463, Unknown=0, NotChecked=0, Total=16512 [2021-11-12 23:38:07,262 INFO L87 Difference]: Start difference. First operand 474 states and 575 transitions. Second operand has 69 states, 69 states have (on average 4.028985507246377) internal successors, (278), 69 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:40:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:40:43,933 INFO L93 Difference]: Finished difference Result 10066 states and 12509 transitions. [2021-11-12 23:40:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2021-11-12 23:40:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 4.028985507246377) internal successors, (278), 69 states have internal predecessors, (278), 0 states have call successors, (0), 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 96 [2021-11-12 23:40:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:40:43,974 INFO L225 Difference]: With dead ends: 10066 [2021-11-12 23:40:43,974 INFO L226 Difference]: Without dead ends: 9664 [2021-11-12 23:40:43,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 163 SyntacticMatches, 20 SemanticMatches, 365 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54350 ImplicationChecksByTransitivity, 224.4s TimeCoverageRelationStatistics Valid=20368, Invalid=113954, Unknown=0, NotChecked=0, Total=134322 [2021-11-12 23:40:43,991 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 7264 mSDsluCounter, 7643 mSDsCounter, 0 mSdLazyCounter, 6997 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11821.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7264 SdHoareTripleChecker+Valid, 7824 SdHoareTripleChecker+Invalid, 7770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.17ms SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 6997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12962.44ms IncrementalHoareTripleChecker+Time [2021-11-12 23:40:43,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7264 Valid, 7824 Invalid, 7770 Unknown, 0 Unchecked, 58.17ms Time], IncrementalHoareTripleChecker [773 Valid, 6997 Invalid, 0 Unknown, 0 Unchecked, 12962.44ms Time] [2021-11-12 23:40:44,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9664 states. [2021-11-12 23:40:46,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9664 to 2470. [2021-11-12 23:40:46,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2469 states have (on average 1.2300526528959093) internal successors, (3037), 2469 states have internal predecessors, (3037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:40:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3037 transitions. [2021-11-12 23:40:46,786 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3037 transitions. Word has length 96 [2021-11-12 23:40:46,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:40:46,786 INFO L470 AbstractCegarLoop]: Abstraction has 2470 states and 3037 transitions. [2021-11-12 23:40:46,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 4.028985507246377) internal successors, (278), 69 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:40:46,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3037 transitions. [2021-11-12 23:40:46,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-12 23:40:46,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:40:46,789 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-12 23:40:46,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-12 23:40:47,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:40:47,003 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-12 23:40:47,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:40:47,004 INFO L85 PathProgramCache]: Analyzing trace with hash 774277109, now seen corresponding path program 1 times [2021-11-12 23:40:47,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:40:47,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004615964] [2021-11-12 23:40:47,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:40:47,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:40:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:40:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:40:47,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:40:47,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004615964] [2021-11-12 23:40:47,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004615964] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:40:47,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303982783] [2021-11-12 23:40:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:40:47,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:40:47,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:40:47,970 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:40:47,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e17351-0504-4c20-8813-f79cf6b6a8c3/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 23:40:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:40:48,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-12 23:40:48,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:40:53,689 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:40:53,690 INFO L328 TraceCheckSpWp]: Computing backward predicates...