./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:42:33,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:42:33,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:42:33,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:42:33,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:42:33,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:42:33,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:42:33,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:42:33,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:42:33,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:42:33,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:42:33,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:42:33,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:42:33,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:42:33,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:42:33,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:42:33,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:42:33,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:42:33,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:42:33,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:42:33,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:42:33,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:42:33,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:42:33,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:42:33,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:42:33,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:42:33,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:42:33,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:42:33,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:42:33,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:42:33,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:42:33,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:42:33,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:42:33,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:42:33,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:42:33,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:42:33,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:42:33,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:42:33,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:42:33,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:42:33,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:42:33,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:42:33,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:42:33,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:42:33,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:42:33,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:42:33,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:42:33,891 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:42:33,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:42:33,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:42:33,892 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:42:33,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:42:33,893 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:42:33,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:42:33,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:42:33,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:42:33,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:42:33,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:42:33,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:42:33,895 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:42:33,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:42:33,895 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:42:33,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:42:33,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:42:33,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:42:33,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:42:33,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:42:33,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:42:33,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:42:33,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:42:33,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:42:33,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:42:33,899 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:42:33,899 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:42:33,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:42:33,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:42:33,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 [2021-11-20 07:42:34,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:42:34,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:42:34,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:42:34,212 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:42:34,212 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:42:34,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-11-20 07:42:34,305 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/data/29b19f371/84bef6e6d91b4821a006aae16f6a8bcc/FLAG1c74424e7 [2021-11-20 07:42:35,156 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:42:35,157 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-11-20 07:42:35,191 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/data/29b19f371/84bef6e6d91b4821a006aae16f6a8bcc/FLAG1c74424e7 [2021-11-20 07:42:35,222 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/data/29b19f371/84bef6e6d91b4821a006aae16f6a8bcc [2021-11-20 07:42:35,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:42:35,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:42:35,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:42:35,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:42:35,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:42:35,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:42:35" (1/1) ... [2021-11-20 07:42:35,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e64b0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:35, skipping insertion in model container [2021-11-20 07:42:35,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:42:35" (1/1) ... [2021-11-20 07:42:35,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:42:35,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:42:35,978 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2021-11-20 07:42:36,048 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2021-11-20 07:42:36,081 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2021-11-20 07:42:36,098 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2021-11-20 07:42:36,115 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2021-11-20 07:42:36,184 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2021-11-20 07:42:36,220 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2021-11-20 07:42:36,237 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2021-11-20 07:42:36,252 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2021-11-20 07:42:36,270 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2021-11-20 07:42:36,285 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2021-11-20 07:42:36,299 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2021-11-20 07:42:36,314 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2021-11-20 07:42:36,334 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2021-11-20 07:42:36,349 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2021-11-20 07:42:36,364 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2021-11-20 07:42:36,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:42:36,438 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:42:36,647 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2021-11-20 07:42:36,692 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2021-11-20 07:42:36,716 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2021-11-20 07:42:36,728 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2021-11-20 07:42:36,740 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2021-11-20 07:42:36,790 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2021-11-20 07:42:36,812 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2021-11-20 07:42:36,824 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2021-11-20 07:42:36,836 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2021-11-20 07:42:36,849 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2021-11-20 07:42:36,861 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2021-11-20 07:42:36,873 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2021-11-20 07:42:36,886 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2021-11-20 07:42:36,902 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2021-11-20 07:42:36,913 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2021-11-20 07:42:36,925 WARN L230 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_a81ac905-e7d3-46b3-b135-e91afbf69ceb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2021-11-20 07:42:36,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:42:36,997 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:42:36,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36 WrapperNode [2021-11-20 07:42:36,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:42:36,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:42:36,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:42:37,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:42:37,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (1/1) ... [2021-11-20 07:42:37,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (1/1) ... [2021-11-20 07:42:37,213 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5834 [2021-11-20 07:42:37,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:42:37,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:42:37,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:42:37,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:42:37,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (1/1) ... [2021-11-20 07:42:37,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (1/1) ... [2021-11-20 07:42:37,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (1/1) ... [2021-11-20 07:42:37,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (1/1) ... [2021-11-20 07:42:37,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (1/1) ... [2021-11-20 07:42:37,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (1/1) ... [2021-11-20 07:42:37,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (1/1) ... [2021-11-20 07:42:37,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:42:37,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:42:37,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:42:37,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:42:37,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (1/1) ... [2021-11-20 07:42:37,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:42:37,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:42:37,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:42:37,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:42:37,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:42:37,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:42:37,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:42:37,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:42:37,736 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:42:37,738 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:42:40,624 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:42:40,659 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:42:40,659 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:42:40,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:40 BoogieIcfgContainer [2021-11-20 07:42:40,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:42:40,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:42:40,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:42:40,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:42:40,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:42:35" (1/3) ... [2021-11-20 07:42:40,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47911c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:40, skipping insertion in model container [2021-11-20 07:42:40,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:36" (2/3) ... [2021-11-20 07:42:40,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47911c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:40, skipping insertion in model container [2021-11-20 07:42:40,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:40" (3/3) ... [2021-11-20 07:42:40,676 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-11-20 07:42:40,682 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:42:40,682 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-20 07:42:40,754 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:42:40,761 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:42:40,762 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-20 07:42:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 1193 states, 1176 states have (on average 1.7704081632653061) internal successors, (2082), 1192 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:40,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 07:42:40,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:40,848 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] [2021-11-20 07:42:40,848 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:40,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:40,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1494001524, now seen corresponding path program 1 times [2021-11-20 07:42:40,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:40,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933735047] [2021-11-20 07:42:40,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:40,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:41,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:41,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:41,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933735047] [2021-11-20 07:42:41,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933735047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:41,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:41,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:42:41,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995876314] [2021-11-20 07:42:41,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:41,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:42:41,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:41,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:42:41,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:42:41,509 INFO L87 Difference]: Start difference. First operand has 1193 states, 1176 states have (on average 1.7704081632653061) internal successors, (2082), 1192 states have internal predecessors, (2082), 0 states have call successors, (0), 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 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:42,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:42,618 INFO L93 Difference]: Finished difference Result 1556 states and 2660 transitions. [2021-11-20 07:42:42,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:42:42,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-11-20 07:42:42,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:42,653 INFO L225 Difference]: With dead ends: 1556 [2021-11-20 07:42:42,655 INFO L226 Difference]: Without dead ends: 945 [2021-11-20 07:42:42,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:42:42,669 INFO L933 BasicCegarLoop]: 917 mSDtfsCounter, 4717 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4717 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:42,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4717 Valid, 931 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 07:42:42,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2021-11-20 07:42:42,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 945. [2021-11-20 07:42:42,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 929 states have (on average 1.2927879440258343) internal successors, (1201), 944 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:42,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1201 transitions. [2021-11-20 07:42:42,813 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1201 transitions. Word has length 73 [2021-11-20 07:42:42,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:42,814 INFO L470 AbstractCegarLoop]: Abstraction has 945 states and 1201 transitions. [2021-11-20 07:42:42,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:42,814 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1201 transitions. [2021-11-20 07:42:42,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 07:42:42,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:42,820 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] [2021-11-20 07:42:42,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:42:42,821 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:42,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash -2060458333, now seen corresponding path program 1 times [2021-11-20 07:42:42,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:42,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83590513] [2021-11-20 07:42:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:42,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:43,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:43,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83590513] [2021-11-20 07:42:43,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83590513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:43,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:43,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:42:43,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864624453] [2021-11-20 07:42:43,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:43,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:42:43,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:43,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:42:43,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:42:43,041 INFO L87 Difference]: Start difference. First operand 945 states and 1201 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:43,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:43,897 INFO L93 Difference]: Finished difference Result 1347 states and 1726 transitions. [2021-11-20 07:42:43,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:42:43,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-11-20 07:42:43,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:43,903 INFO L225 Difference]: With dead ends: 1347 [2021-11-20 07:42:43,904 INFO L226 Difference]: Without dead ends: 881 [2021-11-20 07:42:43,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:42:43,906 INFO L933 BasicCegarLoop]: 527 mSDtfsCounter, 3247 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3247 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:43,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3247 Valid, 563 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:42:43,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2021-11-20 07:42:43,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2021-11-20 07:42:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 865 states have (on average 1.3040462427745665) internal successors, (1128), 880 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1128 transitions. [2021-11-20 07:42:43,999 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1128 transitions. Word has length 73 [2021-11-20 07:42:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:44,000 INFO L470 AbstractCegarLoop]: Abstraction has 881 states and 1128 transitions. [2021-11-20 07:42:44,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:44,001 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1128 transitions. [2021-11-20 07:42:44,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 07:42:44,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:44,004 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] [2021-11-20 07:42:44,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:42:44,005 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:44,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:44,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1618618520, now seen corresponding path program 1 times [2021-11-20 07:42:44,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:44,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062632807] [2021-11-20 07:42:44,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:44,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:44,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:44,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:44,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062632807] [2021-11-20 07:42:44,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062632807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:44,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:44,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:42:44,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172934679] [2021-11-20 07:42:44,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:44,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:42:44,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:44,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:42:44,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:42:44,157 INFO L87 Difference]: Start difference. First operand 881 states and 1128 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:44,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:44,655 INFO L93 Difference]: Finished difference Result 1019 states and 1292 transitions. [2021-11-20 07:42:44,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:42:44,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-11-20 07:42:44,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:44,663 INFO L225 Difference]: With dead ends: 1019 [2021-11-20 07:42:44,663 INFO L226 Difference]: Without dead ends: 585 [2021-11-20 07:42:44,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:42:44,666 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 2127 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:44,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2127 Valid, 417 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:42:44,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2021-11-20 07:42:44,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2021-11-20 07:42:44,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 569 states have (on average 1.3057996485061512) internal successors, (743), 584 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 743 transitions. [2021-11-20 07:42:44,721 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 743 transitions. Word has length 73 [2021-11-20 07:42:44,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:44,721 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 743 transitions. [2021-11-20 07:42:44,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:44,722 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 743 transitions. [2021-11-20 07:42:44,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-20 07:42:44,724 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:44,724 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] [2021-11-20 07:42:44,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:42:44,725 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:44,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:44,726 INFO L85 PathProgramCache]: Analyzing trace with hash -700009990, now seen corresponding path program 1 times [2021-11-20 07:42:44,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:44,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718401994] [2021-11-20 07:42:44,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:44,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:44,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:44,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:44,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718401994] [2021-11-20 07:42:44,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718401994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:44,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:44,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:42:44,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391488825] [2021-11-20 07:42:44,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:44,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:42:44,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:44,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:42:44,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:42:44,889 INFO L87 Difference]: Start difference. First operand 585 states and 743 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:45,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:45,254 INFO L93 Difference]: Finished difference Result 807 states and 1026 transitions. [2021-11-20 07:42:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:42:45,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2021-11-20 07:42:45,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:45,260 INFO L225 Difference]: With dead ends: 807 [2021-11-20 07:42:45,260 INFO L226 Difference]: Without dead ends: 500 [2021-11-20 07:42:45,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:42:45,266 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1841 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:45,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1841 Valid, 368 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:42:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-11-20 07:42:45,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2021-11-20 07:42:45,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 484 states have (on average 1.3161157024793388) internal successors, (637), 499 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:45,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 637 transitions. [2021-11-20 07:42:45,311 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 637 transitions. Word has length 75 [2021-11-20 07:42:45,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:45,312 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 637 transitions. [2021-11-20 07:42:45,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 637 transitions. [2021-11-20 07:42:45,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-20 07:42:45,314 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:45,314 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] [2021-11-20 07:42:45,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:42:45,315 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:45,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:45,316 INFO L85 PathProgramCache]: Analyzing trace with hash 137435073, now seen corresponding path program 1 times [2021-11-20 07:42:45,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:45,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714766174] [2021-11-20 07:42:45,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:45,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:45,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:45,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:45,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714766174] [2021-11-20 07:42:45,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714766174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:45,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:45,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:42:45,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223313340] [2021-11-20 07:42:45,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:45,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:42:45,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:45,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:42:45,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:42:45,461 INFO L87 Difference]: Start difference. First operand 500 states and 637 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 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) [2021-11-20 07:42:45,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:45,728 INFO L93 Difference]: Finished difference Result 686 states and 871 transitions. [2021-11-20 07:42:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:42:45,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 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 [2021-11-20 07:42:45,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:45,733 INFO L225 Difference]: With dead ends: 686 [2021-11-20 07:42:45,734 INFO L226 Difference]: Without dead ends: 423 [2021-11-20 07:42:45,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:42:45,736 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 1530 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:45,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1530 Valid, 334 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 07:42:45,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2021-11-20 07:42:45,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2021-11-20 07:42:45,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3194103194103195) internal successors, (537), 422 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:45,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 537 transitions. [2021-11-20 07:42:45,796 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 537 transitions. Word has length 77 [2021-11-20 07:42:45,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:45,797 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 537 transitions. [2021-11-20 07:42:45,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 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) [2021-11-20 07:42:45,798 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 537 transitions. [2021-11-20 07:42:45,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-20 07:42:45,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:45,805 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] [2021-11-20 07:42:45,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:42:45,806 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:45,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:45,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1748744325, now seen corresponding path program 1 times [2021-11-20 07:42:45,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:45,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716981804] [2021-11-20 07:42:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:45,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:46,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:46,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716981804] [2021-11-20 07:42:46,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716981804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:46,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:46,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 07:42:46,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820808148] [2021-11-20 07:42:46,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:46,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 07:42:46,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:46,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 07:42:46,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:42:46,045 INFO L87 Difference]: Start difference. First operand 423 states and 537 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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) [2021-11-20 07:42:47,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:47,028 INFO L93 Difference]: Finished difference Result 935 states and 1225 transitions. [2021-11-20 07:42:47,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 07:42:47,029 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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 [2021-11-20 07:42:47,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:47,033 INFO L225 Difference]: With dead ends: 935 [2021-11-20 07:42:47,033 INFO L226 Difference]: Without dead ends: 783 [2021-11-20 07:42:47,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-11-20 07:42:47,034 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 2111 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:47,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2111 Valid, 1791 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:42:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2021-11-20 07:42:47,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 423. [2021-11-20 07:42:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.316953316953317) internal successors, (536), 422 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 536 transitions. [2021-11-20 07:42:47,072 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 536 transitions. Word has length 79 [2021-11-20 07:42:47,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:47,072 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 536 transitions. [2021-11-20 07:42:47,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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) [2021-11-20 07:42:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 536 transitions. [2021-11-20 07:42:47,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-20 07:42:47,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:47,075 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] [2021-11-20 07:42:47,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:42:47,075 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:47,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:47,076 INFO L85 PathProgramCache]: Analyzing trace with hash -945208837, now seen corresponding path program 1 times [2021-11-20 07:42:47,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:47,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834466901] [2021-11-20 07:42:47,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:47,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:47,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:47,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:47,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834466901] [2021-11-20 07:42:47,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834466901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:47,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:47,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 07:42:47,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207399829] [2021-11-20 07:42:47,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:47,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 07:42:47,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:47,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 07:42:47,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:42:47,252 INFO L87 Difference]: Start difference. First operand 423 states and 536 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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) [2021-11-20 07:42:48,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:48,354 INFO L93 Difference]: Finished difference Result 761 states and 980 transitions. [2021-11-20 07:42:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 07:42:48,354 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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 [2021-11-20 07:42:48,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:48,359 INFO L225 Difference]: With dead ends: 761 [2021-11-20 07:42:48,359 INFO L226 Difference]: Without dead ends: 755 [2021-11-20 07:42:48,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-11-20 07:42:48,361 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 1656 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 2021 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:48,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1656 Valid, 2021 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:42:48,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2021-11-20 07:42:48,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 423. [2021-11-20 07:42:48,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3144963144963144) internal successors, (535), 422 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:48,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 535 transitions. [2021-11-20 07:42:48,404 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 535 transitions. Word has length 79 [2021-11-20 07:42:48,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:48,404 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 535 transitions. [2021-11-20 07:42:48,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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) [2021-11-20 07:42:48,405 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 535 transitions. [2021-11-20 07:42:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-20 07:42:48,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:48,406 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] [2021-11-20 07:42:48,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:42:48,407 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:48,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:48,407 INFO L85 PathProgramCache]: Analyzing trace with hash 582241083, now seen corresponding path program 1 times [2021-11-20 07:42:48,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:48,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738437975] [2021-11-20 07:42:48,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:48,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:48,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:48,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738437975] [2021-11-20 07:42:48,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738437975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:48,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:48,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 07:42:48,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836802168] [2021-11-20 07:42:48,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:48,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 07:42:48,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:48,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 07:42:48,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:42:48,565 INFO L87 Difference]: Start difference. First operand 423 states and 535 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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) [2021-11-20 07:42:49,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:49,808 INFO L93 Difference]: Finished difference Result 882 states and 1157 transitions. [2021-11-20 07:42:49,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 07:42:49,809 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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 [2021-11-20 07:42:49,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:49,813 INFO L225 Difference]: With dead ends: 882 [2021-11-20 07:42:49,813 INFO L226 Difference]: Without dead ends: 779 [2021-11-20 07:42:49,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-11-20 07:42:49,815 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 2291 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2291 SdHoareTripleChecker+Valid, 2609 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:49,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2291 Valid, 2609 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 07:42:49,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2021-11-20 07:42:49,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 423. [2021-11-20 07:42:49,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3120393120393121) internal successors, (534), 422 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:49,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 534 transitions. [2021-11-20 07:42:49,860 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 534 transitions. Word has length 79 [2021-11-20 07:42:49,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:49,861 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 534 transitions. [2021-11-20 07:42:49,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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) [2021-11-20 07:42:49,861 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 534 transitions. [2021-11-20 07:42:49,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-20 07:42:49,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:49,863 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] [2021-11-20 07:42:49,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 07:42:49,863 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:49,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:49,864 INFO L85 PathProgramCache]: Analyzing trace with hash 467548795, now seen corresponding path program 1 times [2021-11-20 07:42:49,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:49,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089715395] [2021-11-20 07:42:49,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:49,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:50,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:50,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089715395] [2021-11-20 07:42:50,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089715395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:50,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:50,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 07:42:50,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016657527] [2021-11-20 07:42:50,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:50,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 07:42:50,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:50,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 07:42:50,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:42:50,049 INFO L87 Difference]: Start difference. First operand 423 states and 534 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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) [2021-11-20 07:42:51,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:51,059 INFO L93 Difference]: Finished difference Result 761 states and 978 transitions. [2021-11-20 07:42:51,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 07:42:51,059 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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 [2021-11-20 07:42:51,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:51,064 INFO L225 Difference]: With dead ends: 761 [2021-11-20 07:42:51,064 INFO L226 Difference]: Without dead ends: 755 [2021-11-20 07:42:51,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-11-20 07:42:51,067 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 2554 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:51,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2554 Valid, 1764 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:42:51,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2021-11-20 07:42:51,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 423. [2021-11-20 07:42:51,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3095823095823096) internal successors, (533), 422 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:51,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 533 transitions. [2021-11-20 07:42:51,108 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 533 transitions. Word has length 79 [2021-11-20 07:42:51,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:51,108 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 533 transitions. [2021-11-20 07:42:51,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 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) [2021-11-20 07:42:51,109 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 533 transitions. [2021-11-20 07:42:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-20 07:42:51,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:51,110 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] [2021-11-20 07:42:51,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 07:42:51,111 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:51,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:51,111 INFO L85 PathProgramCache]: Analyzing trace with hash -883245509, now seen corresponding path program 1 times [2021-11-20 07:42:51,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:51,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331896988] [2021-11-20 07:42:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:51,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:51,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:51,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331896988] [2021-11-20 07:42:51,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331896988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:51,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:51,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:42:51,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925104849] [2021-11-20 07:42:51,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:51,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:42:51,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:51,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:42:51,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:42:51,250 INFO L87 Difference]: Start difference. First operand 423 states and 533 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2021-11-20 07:42:52,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:52,254 INFO L93 Difference]: Finished difference Result 877 states and 1153 transitions. [2021-11-20 07:42:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:42:52,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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 [2021-11-20 07:42:52,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:52,259 INFO L225 Difference]: With dead ends: 877 [2021-11-20 07:42:52,259 INFO L226 Difference]: Without dead ends: 783 [2021-11-20 07:42:52,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-20 07:42:52,261 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 2992 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2992 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:52,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2992 Valid, 1807 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:42:52,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2021-11-20 07:42:52,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 423. [2021-11-20 07:42:52,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.307125307125307) internal successors, (532), 422 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:52,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 532 transitions. [2021-11-20 07:42:52,309 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 532 transitions. Word has length 79 [2021-11-20 07:42:52,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:52,310 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 532 transitions. [2021-11-20 07:42:52,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2021-11-20 07:42:52,310 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 532 transitions. [2021-11-20 07:42:52,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-20 07:42:52,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:52,312 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] [2021-11-20 07:42:52,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 07:42:52,313 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:52,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:52,313 INFO L85 PathProgramCache]: Analyzing trace with hash -876086789, now seen corresponding path program 1 times [2021-11-20 07:42:52,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:52,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705193215] [2021-11-20 07:42:52,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:52,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:52,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:52,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705193215] [2021-11-20 07:42:52,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705193215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:52,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:52,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:42:52,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293910214] [2021-11-20 07:42:52,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:52,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:42:52,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:52,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:42:52,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:42:52,496 INFO L87 Difference]: Start difference. First operand 423 states and 532 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2021-11-20 07:42:53,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:53,309 INFO L93 Difference]: Finished difference Result 924 states and 1207 transitions. [2021-11-20 07:42:53,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:42:53,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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 [2021-11-20 07:42:53,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:53,314 INFO L225 Difference]: With dead ends: 924 [2021-11-20 07:42:53,314 INFO L226 Difference]: Without dead ends: 787 [2021-11-20 07:42:53,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:42:53,315 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 2591 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:53,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2591 Valid, 1477 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 07:42:53,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-11-20 07:42:53,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 423. [2021-11-20 07:42:53,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3046683046683047) internal successors, (531), 422 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 531 transitions. [2021-11-20 07:42:53,363 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 531 transitions. Word has length 79 [2021-11-20 07:42:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:53,364 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 531 transitions. [2021-11-20 07:42:53,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2021-11-20 07:42:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 531 transitions. [2021-11-20 07:42:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-20 07:42:53,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:53,366 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] [2021-11-20 07:42:53,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 07:42:53,366 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:53,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:53,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1237663684, now seen corresponding path program 1 times [2021-11-20 07:42:53,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:53,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358873297] [2021-11-20 07:42:53,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:53,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:53,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:53,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358873297] [2021-11-20 07:42:53,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358873297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:53,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:53,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:42:53,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061032522] [2021-11-20 07:42:53,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:53,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:42:53,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:53,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:42:53,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:42:53,494 INFO L87 Difference]: Start difference. First operand 423 states and 531 transitions. Second operand has 8 states, 8 states have (on average 10.0) 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) [2021-11-20 07:42:54,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:54,193 INFO L93 Difference]: Finished difference Result 821 states and 1016 transitions. [2021-11-20 07:42:54,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:42:54,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) 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 [2021-11-20 07:42:54,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:54,197 INFO L225 Difference]: With dead ends: 821 [2021-11-20 07:42:54,197 INFO L226 Difference]: Without dead ends: 592 [2021-11-20 07:42:54,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:42:54,199 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 2771 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2771 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:54,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2771 Valid, 1046 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 07:42:54,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-11-20 07:42:54,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 423. [2021-11-20 07:42:54,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3022113022113022) internal successors, (530), 422 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:54,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 530 transitions. [2021-11-20 07:42:54,247 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 530 transitions. Word has length 80 [2021-11-20 07:42:54,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:54,247 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 530 transitions. [2021-11-20 07:42:54,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) 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) [2021-11-20 07:42:54,248 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 530 transitions. [2021-11-20 07:42:54,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-20 07:42:54,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:54,249 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] [2021-11-20 07:42:54,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 07:42:54,250 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:54,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:54,250 INFO L85 PathProgramCache]: Analyzing trace with hash -178984548, now seen corresponding path program 1 times [2021-11-20 07:42:54,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:54,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779696056] [2021-11-20 07:42:54,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:54,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:54,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:54,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779696056] [2021-11-20 07:42:54,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779696056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:54,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:54,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:42:54,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588507131] [2021-11-20 07:42:54,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:54,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:42:54,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:54,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:42:54,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:42:54,421 INFO L87 Difference]: Start difference. First operand 423 states and 530 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:55,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:55,293 INFO L93 Difference]: Finished difference Result 850 states and 1108 transitions. [2021-11-20 07:42:55,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:42:55,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-20 07:42:55,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:55,298 INFO L225 Difference]: With dead ends: 850 [2021-11-20 07:42:55,298 INFO L226 Difference]: Without dead ends: 775 [2021-11-20 07:42:55,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-20 07:42:55,299 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 2964 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2964 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:55,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2964 Valid, 1706 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 07:42:55,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2021-11-20 07:42:55,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 423. [2021-11-20 07:42:55,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.2997542997542997) internal successors, (529), 422 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 529 transitions. [2021-11-20 07:42:55,375 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 529 transitions. Word has length 80 [2021-11-20 07:42:55,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:55,375 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 529 transitions. [2021-11-20 07:42:55,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:55,377 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 529 transitions. [2021-11-20 07:42:55,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-20 07:42:55,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:55,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:55,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 07:42:55,379 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:55,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:55,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1694349184, now seen corresponding path program 1 times [2021-11-20 07:42:55,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:55,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102834084] [2021-11-20 07:42:55,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:55,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:55,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:55,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102834084] [2021-11-20 07:42:55,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102834084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:55,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:55,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:42:55,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222153994] [2021-11-20 07:42:55,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:55,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:42:55,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:55,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:42:55,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:42:55,511 INFO L87 Difference]: Start difference. First operand 423 states and 529 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:56,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:56,503 INFO L93 Difference]: Finished difference Result 854 states and 1111 transitions. [2021-11-20 07:42:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:42:56,503 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-11-20 07:42:56,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:56,507 INFO L225 Difference]: With dead ends: 854 [2021-11-20 07:42:56,507 INFO L226 Difference]: Without dead ends: 775 [2021-11-20 07:42:56,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-20 07:42:56,509 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 2895 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:56,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2895 Valid, 1749 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:42:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2021-11-20 07:42:56,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 423. [2021-11-20 07:42:56,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.2972972972972974) internal successors, (528), 422 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 528 transitions. [2021-11-20 07:42:56,565 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 528 transitions. Word has length 81 [2021-11-20 07:42:56,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:56,566 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 528 transitions. [2021-11-20 07:42:56,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:56,566 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 528 transitions. [2021-11-20 07:42:56,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-20 07:42:56,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:56,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:56,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 07:42:56,568 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:56,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:56,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1372385248, now seen corresponding path program 1 times [2021-11-20 07:42:56,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:56,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784829208] [2021-11-20 07:42:56,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:56,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:56,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:56,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:56,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784829208] [2021-11-20 07:42:56,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784829208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:56,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:56,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:42:56,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092955120] [2021-11-20 07:42:56,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:56,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:42:56,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:56,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:42:56,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:42:56,722 INFO L87 Difference]: Start difference. First operand 423 states and 528 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:57,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:57,652 INFO L93 Difference]: Finished difference Result 886 states and 1156 transitions. [2021-11-20 07:42:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:42:57,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-11-20 07:42:57,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:57,665 INFO L225 Difference]: With dead ends: 886 [2021-11-20 07:42:57,665 INFO L226 Difference]: Without dead ends: 783 [2021-11-20 07:42:57,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:42:57,670 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 2567 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:57,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2567 Valid, 2096 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:42:57,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2021-11-20 07:42:57,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 423. [2021-11-20 07:42:57,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.2948402948402948) internal successors, (527), 422 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:57,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 527 transitions. [2021-11-20 07:42:57,728 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 527 transitions. Word has length 81 [2021-11-20 07:42:57,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:57,728 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 527 transitions. [2021-11-20 07:42:57,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:57,729 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 527 transitions. [2021-11-20 07:42:57,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-20 07:42:57,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:57,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:57,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 07:42:57,731 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:57,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:57,731 INFO L85 PathProgramCache]: Analyzing trace with hash 845637120, now seen corresponding path program 1 times [2021-11-20 07:42:57,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:57,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744520576] [2021-11-20 07:42:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:57,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:57,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:57,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744520576] [2021-11-20 07:42:57,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744520576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:57,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:57,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 07:42:57,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785802664] [2021-11-20 07:42:57,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:57,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 07:42:57,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:57,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 07:42:57,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:42:57,988 INFO L87 Difference]: Start difference. First operand 423 states and 527 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:59,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:59,821 INFO L93 Difference]: Finished difference Result 1284 states and 1724 transitions. [2021-11-20 07:42:59,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:42:59,822 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-11-20 07:42:59,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:59,826 INFO L225 Difference]: With dead ends: 1284 [2021-11-20 07:42:59,826 INFO L226 Difference]: Without dead ends: 1205 [2021-11-20 07:42:59,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 07:42:59,828 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 5907 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5907 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:59,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5907 Valid, 2734 Invalid, 2451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 07:42:59,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2021-11-20 07:42:59,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 428. [2021-11-20 07:42:59,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 412 states have (on average 1.2912621359223302) internal successors, (532), 427 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:59,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 532 transitions. [2021-11-20 07:42:59,929 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 532 transitions. Word has length 81 [2021-11-20 07:42:59,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:59,929 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 532 transitions. [2021-11-20 07:42:59,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:59,929 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 532 transitions. [2021-11-20 07:42:59,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-20 07:42:59,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:59,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:59,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 07:42:59,931 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:42:59,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:59,932 INFO L85 PathProgramCache]: Analyzing trace with hash 962867702, now seen corresponding path program 1 times [2021-11-20 07:42:59,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:59,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312274572] [2021-11-20 07:42:59,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:59,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:00,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:00,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:00,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312274572] [2021-11-20 07:43:00,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312274572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:00,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:00,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:00,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168887017] [2021-11-20 07:43:00,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:00,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:00,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:00,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:00,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:00,082 INFO L87 Difference]: Start difference. First operand 428 states and 532 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:00,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:00,987 INFO L93 Difference]: Finished difference Result 829 states and 1069 transitions. [2021-11-20 07:43:00,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:00,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-11-20 07:43:00,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:00,991 INFO L225 Difference]: With dead ends: 829 [2021-11-20 07:43:00,991 INFO L226 Difference]: Without dead ends: 763 [2021-11-20 07:43:00,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:00,992 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 2514 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2514 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:00,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2514 Valid, 2009 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:43:00,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2021-11-20 07:43:01,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 427. [2021-11-20 07:43:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.289537712895377) internal successors, (530), 426 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 530 transitions. [2021-11-20 07:43:01,054 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 530 transitions. Word has length 81 [2021-11-20 07:43:01,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:01,054 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 530 transitions. [2021-11-20 07:43:01,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:01,054 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 530 transitions. [2021-11-20 07:43:01,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-20 07:43:01,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:01,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:01,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 07:43:01,057 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:01,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:01,057 INFO L85 PathProgramCache]: Analyzing trace with hash 547042711, now seen corresponding path program 1 times [2021-11-20 07:43:01,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:01,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992999615] [2021-11-20 07:43:01,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:01,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:01,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:01,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992999615] [2021-11-20 07:43:01,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992999615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:01,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:01,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:01,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365938530] [2021-11-20 07:43:01,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:01,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:01,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:01,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:01,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:01,187 INFO L87 Difference]: Start difference. First operand 427 states and 530 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:02,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:02,236 INFO L93 Difference]: Finished difference Result 831 states and 1070 transitions. [2021-11-20 07:43:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:02,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2021-11-20 07:43:02,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:02,240 INFO L225 Difference]: With dead ends: 831 [2021-11-20 07:43:02,240 INFO L226 Difference]: Without dead ends: 763 [2021-11-20 07:43:02,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:02,242 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 2554 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:02,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2554 Valid, 1976 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:43:02,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2021-11-20 07:43:02,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 427. [2021-11-20 07:43:02,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.2871046228710463) internal successors, (529), 426 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 529 transitions. [2021-11-20 07:43:02,301 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 529 transitions. Word has length 82 [2021-11-20 07:43:02,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:02,301 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 529 transitions. [2021-11-20 07:43:02,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:02,302 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 529 transitions. [2021-11-20 07:43:02,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-20 07:43:02,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:02,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:02,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 07:43:02,304 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:02,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:02,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1303505865, now seen corresponding path program 1 times [2021-11-20 07:43:02,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:02,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730446579] [2021-11-20 07:43:02,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:02,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:02,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:02,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:02,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730446579] [2021-11-20 07:43:02,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730446579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:02,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:02,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:02,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029405143] [2021-11-20 07:43:02,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:02,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:02,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:02,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:02,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:02,429 INFO L87 Difference]: Start difference. First operand 427 states and 529 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:03,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:03,452 INFO L93 Difference]: Finished difference Result 853 states and 1103 transitions. [2021-11-20 07:43:03,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:03,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2021-11-20 07:43:03,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:03,455 INFO L225 Difference]: With dead ends: 853 [2021-11-20 07:43:03,456 INFO L226 Difference]: Without dead ends: 774 [2021-11-20 07:43:03,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:03,457 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1989 mSDsluCounter, 1850 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:03,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1989 Valid, 2277 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:43:03,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2021-11-20 07:43:03,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 427. [2021-11-20 07:43:03,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.2846715328467153) internal successors, (528), 426 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:03,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 528 transitions. [2021-11-20 07:43:03,512 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 528 transitions. Word has length 82 [2021-11-20 07:43:03,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:03,512 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 528 transitions. [2021-11-20 07:43:03,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:03,513 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 528 transitions. [2021-11-20 07:43:03,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-20 07:43:03,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:03,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:03,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 07:43:03,515 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:03,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:03,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1592889193, now seen corresponding path program 1 times [2021-11-20 07:43:03,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:03,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506128462] [2021-11-20 07:43:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:03,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:03,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:03,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506128462] [2021-11-20 07:43:03,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506128462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:03,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:03,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:03,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961153136] [2021-11-20 07:43:03,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:03,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:03,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:03,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:03,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:03,650 INFO L87 Difference]: Start difference. First operand 427 states and 528 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:04,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:04,674 INFO L93 Difference]: Finished difference Result 831 states and 1068 transitions. [2021-11-20 07:43:04,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:04,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2021-11-20 07:43:04,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:04,679 INFO L225 Difference]: With dead ends: 831 [2021-11-20 07:43:04,679 INFO L226 Difference]: Without dead ends: 763 [2021-11-20 07:43:04,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:04,681 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 2481 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:04,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2481 Valid, 2047 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:43:04,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2021-11-20 07:43:04,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 427. [2021-11-20 07:43:04,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.2822384428223845) internal successors, (527), 426 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:04,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 527 transitions. [2021-11-20 07:43:04,761 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 527 transitions. Word has length 82 [2021-11-20 07:43:04,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:04,761 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 527 transitions. [2021-11-20 07:43:04,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:04,762 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 527 transitions. [2021-11-20 07:43:04,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-20 07:43:04,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:04,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:04,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 07:43:04,764 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:04,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:04,764 INFO L85 PathProgramCache]: Analyzing trace with hash 906756407, now seen corresponding path program 1 times [2021-11-20 07:43:04,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:04,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897841904] [2021-11-20 07:43:04,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:04,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:04,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:04,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897841904] [2021-11-20 07:43:04,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897841904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:04,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:04,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:04,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684889779] [2021-11-20 07:43:04,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:04,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:04,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:04,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:04,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:04,896 INFO L87 Difference]: Start difference. First operand 427 states and 527 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:05,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:05,890 INFO L93 Difference]: Finished difference Result 831 states and 1067 transitions. [2021-11-20 07:43:05,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:05,890 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2021-11-20 07:43:05,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:05,893 INFO L225 Difference]: With dead ends: 831 [2021-11-20 07:43:05,893 INFO L226 Difference]: Without dead ends: 763 [2021-11-20 07:43:05,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:05,894 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 2395 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 2237 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:05,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2395 Valid, 2237 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:43:05,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2021-11-20 07:43:05,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 427. [2021-11-20 07:43:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.2798053527980535) internal successors, (526), 426 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 526 transitions. [2021-11-20 07:43:05,981 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 526 transitions. Word has length 82 [2021-11-20 07:43:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:05,981 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 526 transitions. [2021-11-20 07:43:05,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 526 transitions. [2021-11-20 07:43:05,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-20 07:43:05,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:05,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:05,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 07:43:05,984 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:05,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:05,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1674020809, now seen corresponding path program 1 times [2021-11-20 07:43:05,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:05,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263036836] [2021-11-20 07:43:05,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:05,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:06,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:06,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263036836] [2021-11-20 07:43:06,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263036836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:06,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:06,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 07:43:06,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919467036] [2021-11-20 07:43:06,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:06,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 07:43:06,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:06,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 07:43:06,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:43:06,188 INFO L87 Difference]: Start difference. First operand 427 states and 526 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:08,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:08,030 INFO L93 Difference]: Finished difference Result 1170 states and 1549 transitions. [2021-11-20 07:43:08,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:43:08,030 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2021-11-20 07:43:08,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:08,035 INFO L225 Difference]: With dead ends: 1170 [2021-11-20 07:43:08,035 INFO L226 Difference]: Without dead ends: 1102 [2021-11-20 07:43:08,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 07:43:08,036 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 4295 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4295 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:08,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4295 Valid, 2232 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 07:43:08,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2021-11-20 07:43:08,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 432. [2021-11-20 07:43:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 416 states have (on average 1.2764423076923077) internal successors, (531), 431 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:08,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 531 transitions. [2021-11-20 07:43:08,123 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 531 transitions. Word has length 82 [2021-11-20 07:43:08,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:08,123 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 531 transitions. [2021-11-20 07:43:08,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:08,123 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 531 transitions. [2021-11-20 07:43:08,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-20 07:43:08,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:08,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:08,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 07:43:08,125 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:08,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:08,126 INFO L85 PathProgramCache]: Analyzing trace with hash 497143476, now seen corresponding path program 1 times [2021-11-20 07:43:08,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:08,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179659765] [2021-11-20 07:43:08,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:08,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:08,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:08,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179659765] [2021-11-20 07:43:08,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179659765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:08,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:08,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:08,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106754896] [2021-11-20 07:43:08,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:08,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:08,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:08,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:08,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:08,239 INFO L87 Difference]: Start difference. First operand 432 states and 531 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:09,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:09,182 INFO L93 Difference]: Finished difference Result 858 states and 1105 transitions. [2021-11-20 07:43:09,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:09,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2021-11-20 07:43:09,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:09,186 INFO L225 Difference]: With dead ends: 858 [2021-11-20 07:43:09,186 INFO L226 Difference]: Without dead ends: 779 [2021-11-20 07:43:09,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:09,187 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 2013 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:09,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2013 Valid, 1989 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 07:43:09,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2021-11-20 07:43:09,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 427. [2021-11-20 07:43:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.2773722627737227) internal successors, (525), 426 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 525 transitions. [2021-11-20 07:43:09,285 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 525 transitions. Word has length 82 [2021-11-20 07:43:09,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:09,285 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 525 transitions. [2021-11-20 07:43:09,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:09,285 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 525 transitions. [2021-11-20 07:43:09,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 07:43:09,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:09,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:09,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 07:43:09,288 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:09,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:09,288 INFO L85 PathProgramCache]: Analyzing trace with hash -647233403, now seen corresponding path program 1 times [2021-11-20 07:43:09,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:09,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272259575] [2021-11-20 07:43:09,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:09,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:09,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:09,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272259575] [2021-11-20 07:43:09,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272259575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:09,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:09,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:09,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309540225] [2021-11-20 07:43:09,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:09,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:09,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:09,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:09,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:09,432 INFO L87 Difference]: Start difference. First operand 427 states and 525 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:10,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:10,500 INFO L93 Difference]: Finished difference Result 798 states and 1013 transitions. [2021-11-20 07:43:10,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:10,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-20 07:43:10,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:10,505 INFO L225 Difference]: With dead ends: 798 [2021-11-20 07:43:10,505 INFO L226 Difference]: Without dead ends: 779 [2021-11-20 07:43:10,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:10,506 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 1854 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:10,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1854 Valid, 2452 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:43:10,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2021-11-20 07:43:10,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 427. [2021-11-20 07:43:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.2749391727493917) internal successors, (524), 426 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:10,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 524 transitions. [2021-11-20 07:43:10,583 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 524 transitions. Word has length 83 [2021-11-20 07:43:10,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:10,583 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 524 transitions. [2021-11-20 07:43:10,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 524 transitions. [2021-11-20 07:43:10,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 07:43:10,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:10,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:10,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 07:43:10,585 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:10,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:10,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2136665467, now seen corresponding path program 1 times [2021-11-20 07:43:10,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:10,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675680981] [2021-11-20 07:43:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:10,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:10,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:10,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:10,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675680981] [2021-11-20 07:43:10,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675680981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:10,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:10,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:10,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962734824] [2021-11-20 07:43:10,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:10,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:10,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:10,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:10,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:10,732 INFO L87 Difference]: Start difference. First operand 427 states and 524 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:11,821 INFO L93 Difference]: Finished difference Result 829 states and 1061 transitions. [2021-11-20 07:43:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:11,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-20 07:43:11,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:11,825 INFO L225 Difference]: With dead ends: 829 [2021-11-20 07:43:11,825 INFO L226 Difference]: Without dead ends: 758 [2021-11-20 07:43:11,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:11,826 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 2430 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2430 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:11,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2430 Valid, 2133 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:43:11,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-11-20 07:43:11,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 427. [2021-11-20 07:43:11,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.2725060827250607) internal successors, (523), 426 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:11,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 523 transitions. [2021-11-20 07:43:11,900 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 523 transitions. Word has length 83 [2021-11-20 07:43:11,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:11,901 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 523 transitions. [2021-11-20 07:43:11,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:11,901 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 523 transitions. [2021-11-20 07:43:11,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 07:43:11,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:11,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:11,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 07:43:11,903 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:11,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:11,903 INFO L85 PathProgramCache]: Analyzing trace with hash -609215547, now seen corresponding path program 1 times [2021-11-20 07:43:11,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:11,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897096928] [2021-11-20 07:43:11,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:11,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:12,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:12,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:12,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897096928] [2021-11-20 07:43:12,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897096928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:12,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:12,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:12,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75440483] [2021-11-20 07:43:12,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:12,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:12,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:12,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:12,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:12,025 INFO L87 Difference]: Start difference. First operand 427 states and 523 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:13,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:13,016 INFO L93 Difference]: Finished difference Result 863 states and 1106 transitions. [2021-11-20 07:43:13,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:13,017 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-20 07:43:13,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:13,020 INFO L225 Difference]: With dead ends: 863 [2021-11-20 07:43:13,020 INFO L226 Difference]: Without dead ends: 779 [2021-11-20 07:43:13,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:13,021 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 1968 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:13,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1968 Valid, 2104 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:43:13,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2021-11-20 07:43:13,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 427. [2021-11-20 07:43:13,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.27007299270073) internal successors, (522), 426 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:13,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 522 transitions. [2021-11-20 07:43:13,100 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 522 transitions. Word has length 83 [2021-11-20 07:43:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:13,101 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 522 transitions. [2021-11-20 07:43:13,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:13,101 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 522 transitions. [2021-11-20 07:43:13,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 07:43:13,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:13,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:13,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 07:43:13,103 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:13,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:13,103 INFO L85 PathProgramCache]: Analyzing trace with hash -2078948027, now seen corresponding path program 1 times [2021-11-20 07:43:13,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:13,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678069883] [2021-11-20 07:43:13,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:13,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:13,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:13,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678069883] [2021-11-20 07:43:13,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678069883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:13,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:13,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:13,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040272473] [2021-11-20 07:43:13,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:13,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:13,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:13,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:13,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:13,210 INFO L87 Difference]: Start difference. First operand 427 states and 522 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:14,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:14,271 INFO L93 Difference]: Finished difference Result 896 states and 1151 transitions. [2021-11-20 07:43:14,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:14,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-20 07:43:14,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:14,275 INFO L225 Difference]: With dead ends: 896 [2021-11-20 07:43:14,275 INFO L226 Difference]: Without dead ends: 787 [2021-11-20 07:43:14,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:14,276 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 2311 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:14,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2311 Valid, 2277 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:43:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-11-20 07:43:14,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 427. [2021-11-20 07:43:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.267639902676399) internal successors, (521), 426 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:14,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 521 transitions. [2021-11-20 07:43:14,342 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 521 transitions. Word has length 83 [2021-11-20 07:43:14,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:14,342 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 521 transitions. [2021-11-20 07:43:14,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:14,342 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 521 transitions. [2021-11-20 07:43:14,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 07:43:14,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:14,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:14,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 07:43:14,344 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:14,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:14,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1135938619, now seen corresponding path program 1 times [2021-11-20 07:43:14,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:14,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226874812] [2021-11-20 07:43:14,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:14,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:14,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:14,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226874812] [2021-11-20 07:43:14,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226874812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:14,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:14,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:14,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502310415] [2021-11-20 07:43:14,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:14,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:14,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:14,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:14,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:14,469 INFO L87 Difference]: Start difference. First operand 427 states and 521 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:15,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:15,500 INFO L93 Difference]: Finished difference Result 829 states and 1058 transitions. [2021-11-20 07:43:15,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:15,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-20 07:43:15,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:15,503 INFO L225 Difference]: With dead ends: 829 [2021-11-20 07:43:15,503 INFO L226 Difference]: Without dead ends: 758 [2021-11-20 07:43:15,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:15,504 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 2394 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:15,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2394 Valid, 2192 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:43:15,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-11-20 07:43:15,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 427. [2021-11-20 07:43:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.2652068126520681) internal successors, (520), 426 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:15,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 520 transitions. [2021-11-20 07:43:15,576 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 520 transitions. Word has length 83 [2021-11-20 07:43:15,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:15,577 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 520 transitions. [2021-11-20 07:43:15,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:15,577 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 520 transitions. [2021-11-20 07:43:15,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 07:43:15,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:15,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:15,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 07:43:15,579 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:15,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:15,579 INFO L85 PathProgramCache]: Analyzing trace with hash -120186235, now seen corresponding path program 1 times [2021-11-20 07:43:15,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:15,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346421053] [2021-11-20 07:43:15,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:15,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:15,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:15,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346421053] [2021-11-20 07:43:15,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346421053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:15,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:15,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 07:43:15,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830628760] [2021-11-20 07:43:15,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:15,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 07:43:15,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:15,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 07:43:15,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:43:15,786 INFO L87 Difference]: Start difference. First operand 427 states and 520 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:17,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:17,753 INFO L93 Difference]: Finished difference Result 1298 states and 1723 transitions. [2021-11-20 07:43:17,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:43:17,753 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-20 07:43:17,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:17,758 INFO L225 Difference]: With dead ends: 1298 [2021-11-20 07:43:17,758 INFO L226 Difference]: Without dead ends: 1214 [2021-11-20 07:43:17,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 07:43:17,760 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 4017 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4017 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:17,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4017 Valid, 2790 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 07:43:17,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2021-11-20 07:43:17,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 432. [2021-11-20 07:43:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 416 states have (on average 1.2620192307692308) internal successors, (525), 431 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 525 transitions. [2021-11-20 07:43:17,832 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 525 transitions. Word has length 83 [2021-11-20 07:43:17,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:17,832 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 525 transitions. [2021-11-20 07:43:17,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 525 transitions. [2021-11-20 07:43:17,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 07:43:17,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:17,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:17,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 07:43:17,834 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:17,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:17,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1344158299, now seen corresponding path program 1 times [2021-11-20 07:43:17,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:17,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733443344] [2021-11-20 07:43:17,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:17,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:18,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:18,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733443344] [2021-11-20 07:43:18,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733443344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:18,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:18,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 07:43:18,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131075280] [2021-11-20 07:43:18,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:18,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 07:43:18,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:18,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 07:43:18,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:43:18,021 INFO L87 Difference]: Start difference. First operand 432 states and 525 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:19,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:19,829 INFO L93 Difference]: Finished difference Result 1176 states and 1548 transitions. [2021-11-20 07:43:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:43:19,830 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-20 07:43:19,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:19,835 INFO L225 Difference]: With dead ends: 1176 [2021-11-20 07:43:19,836 INFO L226 Difference]: Without dead ends: 1105 [2021-11-20 07:43:19,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 07:43:19,838 INFO L933 BasicCegarLoop]: 480 mSDtfsCounter, 4863 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4863 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:19,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4863 Valid, 2083 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 07:43:19,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-11-20 07:43:19,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 437. [2021-11-20 07:43:19,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 421 states have (on average 1.2589073634204275) internal successors, (530), 436 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:19,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 530 transitions. [2021-11-20 07:43:19,931 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 530 transitions. Word has length 83 [2021-11-20 07:43:19,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:19,931 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 530 transitions. [2021-11-20 07:43:19,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:19,931 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 530 transitions. [2021-11-20 07:43:19,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 07:43:19,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:19,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:19,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-20 07:43:19,932 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:19,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:19,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1785662459, now seen corresponding path program 1 times [2021-11-20 07:43:19,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:19,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532579582] [2021-11-20 07:43:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:19,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:20,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:20,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532579582] [2021-11-20 07:43:20,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532579582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:20,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:20,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 07:43:20,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060770155] [2021-11-20 07:43:20,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:20,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 07:43:20,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:20,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 07:43:20,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:43:20,139 INFO L87 Difference]: Start difference. First operand 437 states and 530 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:22,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:22,084 INFO L93 Difference]: Finished difference Result 1111 states and 1450 transitions. [2021-11-20 07:43:22,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:43:22,085 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-20 07:43:22,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:22,090 INFO L225 Difference]: With dead ends: 1111 [2021-11-20 07:43:22,090 INFO L226 Difference]: Without dead ends: 1105 [2021-11-20 07:43:22,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 07:43:22,091 INFO L933 BasicCegarLoop]: 474 mSDtfsCounter, 4849 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4849 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:22,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4849 Valid, 2509 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 07:43:22,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-11-20 07:43:22,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 442. [2021-11-20 07:43:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 426 states have (on average 1.255868544600939) internal successors, (535), 441 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 535 transitions. [2021-11-20 07:43:22,167 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 535 transitions. Word has length 83 [2021-11-20 07:43:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:22,168 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 535 transitions. [2021-11-20 07:43:22,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:22,168 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 535 transitions. [2021-11-20 07:43:22,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-20 07:43:22,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:22,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:22,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-20 07:43:22,170 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:22,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:22,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1863854243, now seen corresponding path program 1 times [2021-11-20 07:43:22,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:22,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105489449] [2021-11-20 07:43:22,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:22,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:22,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:22,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:22,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105489449] [2021-11-20 07:43:22,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105489449] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:22,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:22,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:22,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212092960] [2021-11-20 07:43:22,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:22,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:22,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:22,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:22,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:22,279 INFO L87 Difference]: Start difference. First operand 442 states and 535 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:23,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:23,241 INFO L93 Difference]: Finished difference Result 831 states and 1057 transitions. [2021-11-20 07:43:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:23,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-20 07:43:23,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:23,245 INFO L225 Difference]: With dead ends: 831 [2021-11-20 07:43:23,245 INFO L226 Difference]: Without dead ends: 763 [2021-11-20 07:43:23,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:23,246 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 2631 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2631 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:23,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2631 Valid, 1863 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 07:43:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2021-11-20 07:43:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 437. [2021-11-20 07:43:23,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 421 states have (on average 1.2565320665083135) internal successors, (529), 436 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:23,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 529 transitions. [2021-11-20 07:43:23,322 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 529 transitions. Word has length 83 [2021-11-20 07:43:23,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:23,322 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 529 transitions. [2021-11-20 07:43:23,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:23,322 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 529 transitions. [2021-11-20 07:43:23,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 07:43:23,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:23,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:23,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-20 07:43:23,324 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:23,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:23,325 INFO L85 PathProgramCache]: Analyzing trace with hash 901356690, now seen corresponding path program 1 times [2021-11-20 07:43:23,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:23,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090512805] [2021-11-20 07:43:23,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:23,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:23,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:23,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090512805] [2021-11-20 07:43:23,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090512805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:23,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:23,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:43:23,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853498070] [2021-11-20 07:43:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:23,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:43:23,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:23,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:43:23,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:43:23,669 INFO L87 Difference]: Start difference. First operand 437 states and 529 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:25,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:25,185 INFO L93 Difference]: Finished difference Result 988 states and 1201 transitions. [2021-11-20 07:43:25,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:25,185 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-20 07:43:25,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:25,190 INFO L225 Difference]: With dead ends: 988 [2021-11-20 07:43:25,190 INFO L226 Difference]: Without dead ends: 922 [2021-11-20 07:43:25,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-20 07:43:25,192 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 3064 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 3988 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:25,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3064 Valid, 3988 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:43:25,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2021-11-20 07:43:25,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 436. [2021-11-20 07:43:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 420 states have (on average 1.2547619047619047) internal successors, (527), 435 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:25,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 527 transitions. [2021-11-20 07:43:25,281 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 527 transitions. Word has length 84 [2021-11-20 07:43:25,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:25,282 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 527 transitions. [2021-11-20 07:43:25,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:25,282 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 527 transitions. [2021-11-20 07:43:25,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 07:43:25,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:25,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:25,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-20 07:43:25,284 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:25,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:25,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1803038574, now seen corresponding path program 1 times [2021-11-20 07:43:25,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:25,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219522401] [2021-11-20 07:43:25,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:25,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:25,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:25,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:25,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219522401] [2021-11-20 07:43:25,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219522401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:25,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:25,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:43:25,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593132987] [2021-11-20 07:43:25,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:25,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:43:25,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:25,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:43:25,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:43:25,694 INFO L87 Difference]: Start difference. First operand 436 states and 527 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:27,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:27,501 INFO L93 Difference]: Finished difference Result 986 states and 1198 transitions. [2021-11-20 07:43:27,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:43:27,501 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-20 07:43:27,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:27,505 INFO L225 Difference]: With dead ends: 986 [2021-11-20 07:43:27,506 INFO L226 Difference]: Without dead ends: 920 [2021-11-20 07:43:27,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-11-20 07:43:27,507 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 2286 mSDsluCounter, 3649 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 4223 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:27,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2286 Valid, 4223 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:43:27,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2021-11-20 07:43:27,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 435. [2021-11-20 07:43:27,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 419 states have (on average 1.2529832935560858) internal successors, (525), 434 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:27,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 525 transitions. [2021-11-20 07:43:27,606 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 525 transitions. Word has length 84 [2021-11-20 07:43:27,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:27,607 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 525 transitions. [2021-11-20 07:43:27,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:27,607 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 525 transitions. [2021-11-20 07:43:27,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 07:43:27,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:27,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:27,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-20 07:43:27,608 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:27,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:27,608 INFO L85 PathProgramCache]: Analyzing trace with hash 469045170, now seen corresponding path program 1 times [2021-11-20 07:43:27,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:27,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407232075] [2021-11-20 07:43:27,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:27,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:28,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:28,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407232075] [2021-11-20 07:43:28,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407232075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:28,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:28,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-11-20 07:43:28,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764560992] [2021-11-20 07:43:28,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:28,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-20 07:43:28,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:28,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-20 07:43:28,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2021-11-20 07:43:28,252 INFO L87 Difference]: Start difference. First operand 435 states and 525 transitions. Second operand has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:34,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:34,345 INFO L93 Difference]: Finished difference Result 1622 states and 2006 transitions. [2021-11-20 07:43:34,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 07:43:34,346 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-20 07:43:34,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:34,349 INFO L225 Difference]: With dead ends: 1622 [2021-11-20 07:43:34,350 INFO L226 Difference]: Without dead ends: 1553 [2021-11-20 07:43:34,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=370, Invalid=1886, Unknown=0, NotChecked=0, Total=2256 [2021-11-20 07:43:34,352 INFO L933 BasicCegarLoop]: 1435 mSDtfsCounter, 4941 mSDsluCounter, 17803 mSDsCounter, 0 mSdLazyCounter, 9337 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 SdHoareTripleChecker+Valid, 19238 SdHoareTripleChecker+Invalid, 9522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 9337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:34,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4941 Valid, 19238 Invalid, 9522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [185 Valid, 9337 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-20 07:43:34,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2021-11-20 07:43:34,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 454. [2021-11-20 07:43:34,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 438 states have (on average 1.2557077625570776) internal successors, (550), 453 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 550 transitions. [2021-11-20 07:43:34,454 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 550 transitions. Word has length 84 [2021-11-20 07:43:34,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:34,455 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 550 transitions. [2021-11-20 07:43:34,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:34,455 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 550 transitions. [2021-11-20 07:43:34,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 07:43:34,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:34,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:34,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-20 07:43:34,457 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:34,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:34,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2078732722, now seen corresponding path program 1 times [2021-11-20 07:43:34,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:34,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648991748] [2021-11-20 07:43:34,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:34,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:34,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:34,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:34,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648991748] [2021-11-20 07:43:34,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648991748] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:34,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:34,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:43:34,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512261502] [2021-11-20 07:43:34,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:34,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:43:34,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:34,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:43:34,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:43:34,822 INFO L87 Difference]: Start difference. First operand 454 states and 550 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:36,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:36,672 INFO L93 Difference]: Finished difference Result 1394 states and 1790 transitions. [2021-11-20 07:43:36,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 07:43:36,673 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-20 07:43:36,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:36,676 INFO L225 Difference]: With dead ends: 1394 [2021-11-20 07:43:36,677 INFO L226 Difference]: Without dead ends: 1328 [2021-11-20 07:43:36,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-11-20 07:43:36,678 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 4048 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4048 SdHoareTripleChecker+Valid, 4232 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:36,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4048 Valid, 4232 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:43:36,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2021-11-20 07:43:36,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 453. [2021-11-20 07:43:36,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 437 states have (on average 1.2540045766590389) internal successors, (548), 452 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:36,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 548 transitions. [2021-11-20 07:43:36,858 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 548 transitions. Word has length 84 [2021-11-20 07:43:36,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:36,858 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 548 transitions. [2021-11-20 07:43:36,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:36,859 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 548 transitions. [2021-11-20 07:43:36,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 07:43:36,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:36,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:36,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-20 07:43:36,861 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:36,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:36,861 INFO L85 PathProgramCache]: Analyzing trace with hash -918543470, now seen corresponding path program 1 times [2021-11-20 07:43:36,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:36,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982897182] [2021-11-20 07:43:36,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:36,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:37,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:37,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982897182] [2021-11-20 07:43:37,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982897182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:37,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:37,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:43:37,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092328617] [2021-11-20 07:43:37,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:37,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:43:37,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:37,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:43:37,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:43:37,273 INFO L87 Difference]: Start difference. First operand 453 states and 548 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:39,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:39,589 INFO L93 Difference]: Finished difference Result 1393 states and 1788 transitions. [2021-11-20 07:43:39,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 07:43:39,590 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-20 07:43:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:39,592 INFO L225 Difference]: With dead ends: 1393 [2021-11-20 07:43:39,593 INFO L226 Difference]: Without dead ends: 1327 [2021-11-20 07:43:39,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-11-20 07:43:39,594 INFO L933 BasicCegarLoop]: 741 mSDtfsCounter, 2756 mSDsluCounter, 5954 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2756 SdHoareTripleChecker+Valid, 6695 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:39,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2756 Valid, 6695 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 07:43:39,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2021-11-20 07:43:39,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 452. [2021-11-20 07:43:39,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 436 states have (on average 1.2522935779816513) internal successors, (546), 451 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:39,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 546 transitions. [2021-11-20 07:43:39,756 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 546 transitions. Word has length 84 [2021-11-20 07:43:39,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:39,756 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 546 transitions. [2021-11-20 07:43:39,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 546 transitions. [2021-11-20 07:43:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 07:43:39,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:39,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:39,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-20 07:43:39,758 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:39,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:39,759 INFO L85 PathProgramCache]: Analyzing trace with hash 880993138, now seen corresponding path program 1 times [2021-11-20 07:43:39,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:39,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534024133] [2021-11-20 07:43:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:39,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:40,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:40,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:40,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534024133] [2021-11-20 07:43:40,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534024133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:40,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:40,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 07:43:40,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211318488] [2021-11-20 07:43:40,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:40,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 07:43:40,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:40,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 07:43:40,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:43:40,097 INFO L87 Difference]: Start difference. First operand 452 states and 546 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:41,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:41,489 INFO L93 Difference]: Finished difference Result 1045 states and 1351 transitions. [2021-11-20 07:43:41,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:43:41,490 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-20 07:43:41,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:41,491 INFO L225 Difference]: With dead ends: 1045 [2021-11-20 07:43:41,491 INFO L226 Difference]: Without dead ends: 948 [2021-11-20 07:43:41,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-20 07:43:41,492 INFO L933 BasicCegarLoop]: 778 mSDtfsCounter, 3017 mSDsluCounter, 3856 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3017 SdHoareTripleChecker+Valid, 4634 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:41,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3017 Valid, 4634 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:43:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2021-11-20 07:43:41,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 420. [2021-11-20 07:43:41,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 405 states have (on average 1.2493827160493827) internal successors, (506), 419 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:41,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 506 transitions. [2021-11-20 07:43:41,595 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 506 transitions. Word has length 84 [2021-11-20 07:43:41,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:41,595 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 506 transitions. [2021-11-20 07:43:41,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 506 transitions. [2021-11-20 07:43:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 07:43:41,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:41,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:41,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-20 07:43:41,596 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:41,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:41,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1922627196, now seen corresponding path program 1 times [2021-11-20 07:43:41,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:41,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451740005] [2021-11-20 07:43:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:41,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:41,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:41,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:41,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451740005] [2021-11-20 07:43:41,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451740005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:41,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:41,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:41,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741532742] [2021-11-20 07:43:41,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:41,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:41,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:41,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:41,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:41,709 INFO L87 Difference]: Start difference. First operand 420 states and 506 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:42,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:42,916 INFO L93 Difference]: Finished difference Result 854 states and 1083 transitions. [2021-11-20 07:43:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:42,916 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-20 07:43:42,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:42,917 INFO L225 Difference]: With dead ends: 854 [2021-11-20 07:43:42,918 INFO L226 Difference]: Without dead ends: 770 [2021-11-20 07:43:42,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:42,919 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 1111 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:42,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 2228 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:43:42,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2021-11-20 07:43:43,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 415. [2021-11-20 07:43:43,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 400 states have (on average 1.25) internal successors, (500), 414 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:43,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 500 transitions. [2021-11-20 07:43:43,031 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 500 transitions. Word has length 84 [2021-11-20 07:43:43,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:43,031 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 500 transitions. [2021-11-20 07:43:43,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:43,031 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 500 transitions. [2021-11-20 07:43:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 07:43:43,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:43,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:43,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-20 07:43:43,032 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:43,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:43,033 INFO L85 PathProgramCache]: Analyzing trace with hash 80443570, now seen corresponding path program 1 times [2021-11-20 07:43:43,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:43,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22460278] [2021-11-20 07:43:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:43,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:43,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:43,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:43,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22460278] [2021-11-20 07:43:43,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22460278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:43,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:43,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-20 07:43:43,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012101878] [2021-11-20 07:43:43,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:43,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-20 07:43:43,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:43,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-20 07:43:43,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:43,842 INFO L87 Difference]: Start difference. First operand 415 states and 500 transitions. Second operand has 21 states, 21 states have (on average 4.0) internal successors, (84), 21 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:47,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:47,121 INFO L93 Difference]: Finished difference Result 1311 states and 1665 transitions. [2021-11-20 07:43:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:43:47,122 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.0) internal successors, (84), 21 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-20 07:43:47,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:47,123 INFO L225 Difference]: With dead ends: 1311 [2021-11-20 07:43:47,123 INFO L226 Difference]: Without dead ends: 1223 [2021-11-20 07:43:47,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=304, Invalid=1102, Unknown=0, NotChecked=0, Total=1406 [2021-11-20 07:43:47,124 INFO L933 BasicCegarLoop]: 929 mSDtfsCounter, 3640 mSDsluCounter, 10772 mSDsCounter, 0 mSdLazyCounter, 3165 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3640 SdHoareTripleChecker+Valid, 11701 SdHoareTripleChecker+Invalid, 3260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:47,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3640 Valid, 11701 Invalid, 3260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3165 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 07:43:47,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2021-11-20 07:43:47,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 422. [2021-11-20 07:43:47,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 407 states have (on average 1.2457002457002457) internal successors, (507), 421 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:47,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 507 transitions. [2021-11-20 07:43:47,255 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 507 transitions. Word has length 84 [2021-11-20 07:43:47,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:47,255 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 507 transitions. [2021-11-20 07:43:47,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.0) internal successors, (84), 21 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:47,255 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 507 transitions. [2021-11-20 07:43:47,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 07:43:47,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:47,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:47,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-20 07:43:47,256 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:47,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:47,256 INFO L85 PathProgramCache]: Analyzing trace with hash 802264831, now seen corresponding path program 1 times [2021-11-20 07:43:47,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:47,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512922139] [2021-11-20 07:43:47,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:47,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:47,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:47,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:47,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512922139] [2021-11-20 07:43:47,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512922139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:47,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:47,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:43:47,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937265334] [2021-11-20 07:43:47,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:47,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:43:47,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:47,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:43:47,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:43:47,367 INFO L87 Difference]: Start difference. First operand 422 states and 507 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:48,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:48,402 INFO L93 Difference]: Finished difference Result 743 states and 927 transitions. [2021-11-20 07:43:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:48,402 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-20 07:43:48,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:48,403 INFO L225 Difference]: With dead ends: 743 [2021-11-20 07:43:48,403 INFO L226 Difference]: Without dead ends: 737 [2021-11-20 07:43:48,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:43:48,404 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1262 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:48,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1262 Valid, 1842 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 07:43:48,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-11-20 07:43:48,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 417. [2021-11-20 07:43:48,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 402 states have (on average 1.2462686567164178) internal successors, (501), 416 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:48,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 501 transitions. [2021-11-20 07:43:48,511 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 501 transitions. Word has length 84 [2021-11-20 07:43:48,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:48,511 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 501 transitions. [2021-11-20 07:43:48,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:48,511 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 501 transitions. [2021-11-20 07:43:48,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 07:43:48,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:48,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:48,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-20 07:43:48,512 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:48,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:48,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1127032366, now seen corresponding path program 1 times [2021-11-20 07:43:48,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:48,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412079238] [2021-11-20 07:43:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:48,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:48,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:48,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:48,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412079238] [2021-11-20 07:43:48,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412079238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:48,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:48,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 07:43:48,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968557315] [2021-11-20 07:43:48,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:48,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 07:43:48,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:48,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 07:43:48,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:43:48,784 INFO L87 Difference]: Start difference. First operand 417 states and 501 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:49,865 INFO L93 Difference]: Finished difference Result 954 states and 1239 transitions. [2021-11-20 07:43:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:43:49,866 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-20 07:43:49,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:49,867 INFO L225 Difference]: With dead ends: 954 [2021-11-20 07:43:49,867 INFO L226 Difference]: Without dead ends: 868 [2021-11-20 07:43:49,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-20 07:43:49,868 INFO L933 BasicCegarLoop]: 702 mSDtfsCounter, 2791 mSDsluCounter, 3833 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2791 SdHoareTripleChecker+Valid, 4535 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:49,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2791 Valid, 4535 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:43:49,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2021-11-20 07:43:49,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 396. [2021-11-20 07:43:49,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 381 states have (on average 1.2414698162729658) internal successors, (473), 395 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:49,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 473 transitions. [2021-11-20 07:43:49,984 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 473 transitions. Word has length 84 [2021-11-20 07:43:49,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:49,984 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 473 transitions. [2021-11-20 07:43:49,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:49,985 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 473 transitions. [2021-11-20 07:43:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-20 07:43:49,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:49,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:49,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-20 07:43:49,986 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:49,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:49,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1485088950, now seen corresponding path program 1 times [2021-11-20 07:43:49,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:49,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056943262] [2021-11-20 07:43:49,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:49,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:50,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:50,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:50,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056943262] [2021-11-20 07:43:50,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056943262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:50,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:50,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 07:43:50,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919056364] [2021-11-20 07:43:50,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:50,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 07:43:50,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:50,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 07:43:50,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:43:50,255 INFO L87 Difference]: Start difference. First operand 396 states and 473 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:51,340 INFO L93 Difference]: Finished difference Result 1047 states and 1346 transitions. [2021-11-20 07:43:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:43:51,341 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-20 07:43:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:51,342 INFO L225 Difference]: With dead ends: 1047 [2021-11-20 07:43:51,342 INFO L226 Difference]: Without dead ends: 902 [2021-11-20 07:43:51,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-20 07:43:51,343 INFO L933 BasicCegarLoop]: 975 mSDtfsCounter, 2183 mSDsluCounter, 4698 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 5673 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:51,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2183 Valid, 5673 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:43:51,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2021-11-20 07:43:51,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 309. [2021-11-20 07:43:51,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 298 states have (on average 1.2416107382550337) internal successors, (370), 308 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:51,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 370 transitions. [2021-11-20 07:43:51,453 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 370 transitions. Word has length 85 [2021-11-20 07:43:51,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:51,454 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 370 transitions. [2021-11-20 07:43:51,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:51,454 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 370 transitions. [2021-11-20 07:43:51,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-20 07:43:51,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:51,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:51,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-20 07:43:51,455 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:51,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:51,456 INFO L85 PathProgramCache]: Analyzing trace with hash -249178582, now seen corresponding path program 1 times [2021-11-20 07:43:51,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:51,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837791834] [2021-11-20 07:43:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:51,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:51,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:51,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:51,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837791834] [2021-11-20 07:43:51,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837791834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:51,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:51,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:43:51,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758968937] [2021-11-20 07:43:51,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:51,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:43:51,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:51,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:43:51,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:43:51,747 INFO L87 Difference]: Start difference. First operand 309 states and 370 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:52,848 INFO L93 Difference]: Finished difference Result 746 states and 926 transitions. [2021-11-20 07:43:52,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:43:52,849 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-20 07:43:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:52,850 INFO L225 Difference]: With dead ends: 746 [2021-11-20 07:43:52,850 INFO L226 Difference]: Without dead ends: 677 [2021-11-20 07:43:52,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-20 07:43:52,851 INFO L933 BasicCegarLoop]: 498 mSDtfsCounter, 2240 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:52,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2240 Valid, 3073 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:43:52,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2021-11-20 07:43:52,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 305. [2021-11-20 07:43:52,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 295 states have (on average 1.2372881355932204) internal successors, (365), 304 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:52,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 365 transitions. [2021-11-20 07:43:52,958 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 365 transitions. Word has length 85 [2021-11-20 07:43:52,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:52,958 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 365 transitions. [2021-11-20 07:43:52,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:52,958 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 365 transitions. [2021-11-20 07:43:52,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-20 07:43:52,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:52,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:52,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-20 07:43:52,959 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:52,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:52,960 INFO L85 PathProgramCache]: Analyzing trace with hash 690370282, now seen corresponding path program 1 times [2021-11-20 07:43:52,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:52,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324404985] [2021-11-20 07:43:52,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:52,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:53,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:53,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:53,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324404985] [2021-11-20 07:43:53,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324404985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:53,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:53,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:43:53,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62958705] [2021-11-20 07:43:53,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:53,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:43:53,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:53,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:43:53,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:43:53,332 INFO L87 Difference]: Start difference. First operand 305 states and 365 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:54,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:54,810 INFO L93 Difference]: Finished difference Result 746 states and 924 transitions. [2021-11-20 07:43:54,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:43:54,812 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-20 07:43:54,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:54,813 INFO L225 Difference]: With dead ends: 746 [2021-11-20 07:43:54,813 INFO L226 Difference]: Without dead ends: 677 [2021-11-20 07:43:54,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-11-20 07:43:54,814 INFO L933 BasicCegarLoop]: 483 mSDtfsCounter, 1815 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 3116 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:54,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1815 Valid, 3116 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 07:43:54,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2021-11-20 07:43:54,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 301. [2021-11-20 07:43:54,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 292 states have (on average 1.2328767123287672) internal successors, (360), 300 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:54,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 360 transitions. [2021-11-20 07:43:54,924 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 360 transitions. Word has length 85 [2021-11-20 07:43:54,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:54,925 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 360 transitions. [2021-11-20 07:43:54,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:54,925 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 360 transitions. [2021-11-20 07:43:54,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-20 07:43:54,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:54,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:54,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-20 07:43:54,927 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:43:54,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:54,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1516218390, now seen corresponding path program 1 times [2021-11-20 07:43:54,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:54,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288535770] [2021-11-20 07:43:54,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:54,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:55,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:55,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:55,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288535770] [2021-11-20 07:43:55,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288535770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:55,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:55,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-11-20 07:43:55,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920499551] [2021-11-20 07:43:55,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:55,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-20 07:43:55,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:55,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-20 07:43:55,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2021-11-20 07:43:55,660 INFO L87 Difference]: Start difference. First operand 301 states and 360 transitions. Second operand has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:01,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:01,166 INFO L93 Difference]: Finished difference Result 1237 states and 1556 transitions. [2021-11-20 07:44:01,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 07:44:01,166 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-20 07:44:01,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:01,168 INFO L225 Difference]: With dead ends: 1237 [2021-11-20 07:44:01,168 INFO L226 Difference]: Without dead ends: 1165 [2021-11-20 07:44:01,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=366, Invalid=1890, Unknown=0, NotChecked=0, Total=2256 [2021-11-20 07:44:01,169 INFO L933 BasicCegarLoop]: 990 mSDtfsCounter, 2769 mSDsluCounter, 13489 mSDsCounter, 0 mSdLazyCounter, 7069 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2769 SdHoareTripleChecker+Valid, 14479 SdHoareTripleChecker+Invalid, 7173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 7069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:01,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2769 Valid, 14479 Invalid, 7173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 7069 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-20 07:44:01,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2021-11-20 07:44:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 321. [2021-11-20 07:44:01,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 312 states have (on average 1.233974358974359) internal successors, (385), 320 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 385 transitions. [2021-11-20 07:44:01,272 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 385 transitions. Word has length 85 [2021-11-20 07:44:01,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:01,272 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 385 transitions. [2021-11-20 07:44:01,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 385 transitions. [2021-11-20 07:44:01,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-20 07:44:01,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:01,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:01,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-20 07:44:01,273 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:01,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:01,274 INFO L85 PathProgramCache]: Analyzing trace with hash 354381354, now seen corresponding path program 1 times [2021-11-20 07:44:01,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:01,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981694513] [2021-11-20 07:44:01,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:01,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:01,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:01,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:01,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981694513] [2021-11-20 07:44:01,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981694513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:01,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:01,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 07:44:01,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762450252] [2021-11-20 07:44:01,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:01,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 07:44:01,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:01,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 07:44:01,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:44:01,519 INFO L87 Difference]: Start difference. First operand 321 states and 385 transitions. Second operand has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:02,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:02,472 INFO L93 Difference]: Finished difference Result 857 states and 1109 transitions. [2021-11-20 07:44:02,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 07:44:02,472 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-20 07:44:02,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:02,473 INFO L225 Difference]: With dead ends: 857 [2021-11-20 07:44:02,473 INFO L226 Difference]: Without dead ends: 702 [2021-11-20 07:44:02,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2021-11-20 07:44:02,474 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 1411 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:02,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1411 Valid, 2824 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:44:02,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-11-20 07:44:02,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 231. [2021-11-20 07:44:02,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.238938053097345) internal successors, (280), 230 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:02,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 280 transitions. [2021-11-20 07:44:02,579 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 280 transitions. Word has length 85 [2021-11-20 07:44:02,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:02,580 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 280 transitions. [2021-11-20 07:44:02,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:02,580 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 280 transitions. [2021-11-20 07:44:02,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-20 07:44:02,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:02,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:02,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-20 07:44:02,581 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:02,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:02,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1855795338, now seen corresponding path program 1 times [2021-11-20 07:44:02,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:02,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261917278] [2021-11-20 07:44:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:02,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:02,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:02,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261917278] [2021-11-20 07:44:02,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261917278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:02,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:02,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 07:44:02,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364834655] [2021-11-20 07:44:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:02,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 07:44:02,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:02,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 07:44:02,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:44:02,811 INFO L87 Difference]: Start difference. First operand 231 states and 280 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 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) [2021-11-20 07:44:03,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:03,618 INFO L93 Difference]: Finished difference Result 621 states and 810 transitions. [2021-11-20 07:44:03,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 07:44:03,619 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-20 07:44:03,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:03,620 INFO L225 Difference]: With dead ends: 621 [2021-11-20 07:44:03,620 INFO L226 Difference]: Without dead ends: 518 [2021-11-20 07:44:03,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2021-11-20 07:44:03,621 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 881 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:03,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [881 Valid, 2840 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 07:44:03,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-11-20 07:44:03,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 180. [2021-11-20 07:44:03,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 177 states have (on average 1.2372881355932204) internal successors, (219), 179 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:03,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 219 transitions. [2021-11-20 07:44:03,694 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 219 transitions. Word has length 86 [2021-11-20 07:44:03,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:03,694 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 219 transitions. [2021-11-20 07:44:03,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 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) [2021-11-20 07:44:03,694 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 219 transitions. [2021-11-20 07:44:03,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-20 07:44:03,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:03,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:03,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-20 07:44:03,695 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:03,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:03,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1665825514, now seen corresponding path program 1 times [2021-11-20 07:44:03,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:03,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368351147] [2021-11-20 07:44:03,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:03,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:03,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:03,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368351147] [2021-11-20 07:44:03,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368351147] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:03,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:03,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:44:03,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321681754] [2021-11-20 07:44:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:03,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:44:03,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:03,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:44:03,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:44:03,809 INFO L87 Difference]: Start difference. First operand 180 states and 219 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 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) [2021-11-20 07:44:04,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:04,309 INFO L93 Difference]: Finished difference Result 276 states and 346 transitions. [2021-11-20 07:44:04,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 07:44:04,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 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 87 [2021-11-20 07:44:04,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:04,310 INFO L225 Difference]: With dead ends: 276 [2021-11-20 07:44:04,310 INFO L226 Difference]: Without dead ends: 268 [2021-11-20 07:44:04,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-11-20 07:44:04,311 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 977 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:04,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 685 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 07:44:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-11-20 07:44:04,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 180. [2021-11-20 07:44:04,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 177 states have (on average 1.231638418079096) internal successors, (218), 179 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 218 transitions. [2021-11-20 07:44:04,384 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 218 transitions. Word has length 87 [2021-11-20 07:44:04,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:04,385 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 218 transitions. [2021-11-20 07:44:04,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 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) [2021-11-20 07:44:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 218 transitions. [2021-11-20 07:44:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-20 07:44:04,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:04,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:04,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-20 07:44:04,386 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:04,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:04,386 INFO L85 PathProgramCache]: Analyzing trace with hash -309288342, now seen corresponding path program 1 times [2021-11-20 07:44:04,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:04,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052971936] [2021-11-20 07:44:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:04,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:04,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:04,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052971936] [2021-11-20 07:44:04,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052971936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:04,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:04,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 07:44:04,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613034538] [2021-11-20 07:44:04,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:04,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 07:44:04,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 07:44:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:44:04,493 INFO L87 Difference]: Start difference. First operand 180 states and 218 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 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) [2021-11-20 07:44:05,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:05,046 INFO L93 Difference]: Finished difference Result 373 states and 478 transitions. [2021-11-20 07:44:05,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 07:44:05,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 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 87 [2021-11-20 07:44:05,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:05,048 INFO L225 Difference]: With dead ends: 373 [2021-11-20 07:44:05,048 INFO L226 Difference]: Without dead ends: 288 [2021-11-20 07:44:05,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-11-20 07:44:05,049 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 790 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:05,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 907 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:44:05,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-20 07:44:05,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 180. [2021-11-20 07:44:05,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 177 states have (on average 1.2259887005649717) internal successors, (217), 179 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:05,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 217 transitions. [2021-11-20 07:44:05,125 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 217 transitions. Word has length 87 [2021-11-20 07:44:05,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:05,125 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 217 transitions. [2021-11-20 07:44:05,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 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) [2021-11-20 07:44:05,125 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 217 transitions. [2021-11-20 07:44:05,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-20 07:44:05,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:05,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:05,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-20 07:44:05,126 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:05,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:05,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1594060367, now seen corresponding path program 1 times [2021-11-20 07:44:05,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:05,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98376973] [2021-11-20 07:44:05,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:05,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:05,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:05,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98376973] [2021-11-20 07:44:05,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98376973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:05,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:05,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:44:05,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864385995] [2021-11-20 07:44:05,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:05,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:44:05,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:05,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:44:05,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:44:05,517 INFO L87 Difference]: Start difference. First operand 180 states and 217 transitions. Second operand has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:07,008 INFO L93 Difference]: Finished difference Result 689 states and 938 transitions. [2021-11-20 07:44:07,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 07:44:07,009 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2021-11-20 07:44:07,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:07,010 INFO L225 Difference]: With dead ends: 689 [2021-11-20 07:44:07,010 INFO L226 Difference]: Without dead ends: 683 [2021-11-20 07:44:07,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-20 07:44:07,011 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 1542 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:07,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1542 Valid, 3262 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:44:07,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2021-11-20 07:44:07,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 174. [2021-11-20 07:44:07,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 172 states have (on average 1.2267441860465116) internal successors, (211), 173 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:07,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 211 transitions. [2021-11-20 07:44:07,084 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 211 transitions. Word has length 89 [2021-11-20 07:44:07,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:07,084 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 211 transitions. [2021-11-20 07:44:07,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:07,084 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 211 transitions. [2021-11-20 07:44:07,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-20 07:44:07,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:07,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:07,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-20 07:44:07,085 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:07,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:07,085 INFO L85 PathProgramCache]: Analyzing trace with hash -543104753, now seen corresponding path program 1 times [2021-11-20 07:44:07,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:07,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394257233] [2021-11-20 07:44:07,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:07,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:07,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:07,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:07,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394257233] [2021-11-20 07:44:07,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394257233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:07,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:07,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-11-20 07:44:07,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256070225] [2021-11-20 07:44:07,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:07,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-20 07:44:07,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:07,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-20 07:44:07,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2021-11-20 07:44:07,972 INFO L87 Difference]: Start difference. First operand 174 states and 211 transitions. Second operand has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:12,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:12,380 INFO L93 Difference]: Finished difference Result 705 states and 910 transitions. [2021-11-20 07:44:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 07:44:12,380 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2021-11-20 07:44:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:12,381 INFO L225 Difference]: With dead ends: 705 [2021-11-20 07:44:12,382 INFO L226 Difference]: Without dead ends: 696 [2021-11-20 07:44:12,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=366, Invalid=1890, Unknown=0, NotChecked=0, Total=2256 [2021-11-20 07:44:12,383 INFO L933 BasicCegarLoop]: 616 mSDtfsCounter, 1638 mSDsluCounter, 9583 mSDsCounter, 0 mSdLazyCounter, 4775 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 10199 SdHoareTripleChecker+Invalid, 4834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 4775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:12,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1638 Valid, 10199 Invalid, 4834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 4775 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 07:44:12,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2021-11-20 07:44:12,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 196. [2021-11-20 07:44:12,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 194 states have (on average 1.2216494845360826) internal successors, (237), 195 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 237 transitions. [2021-11-20 07:44:12,494 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 237 transitions. Word has length 89 [2021-11-20 07:44:12,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:12,494 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 237 transitions. [2021-11-20 07:44:12,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 237 transitions. [2021-11-20 07:44:12,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-20 07:44:12,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:12,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:12,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-20 07:44:12,495 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:12,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:12,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1220515409, now seen corresponding path program 1 times [2021-11-20 07:44:12,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:12,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372924184] [2021-11-20 07:44:12,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:12,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:12,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:12,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372924184] [2021-11-20 07:44:12,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372924184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:12,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:12,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:44:12,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603261528] [2021-11-20 07:44:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:12,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:44:12,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:12,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:44:12,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:44:12,865 INFO L87 Difference]: Start difference. First operand 196 states and 237 transitions. Second operand has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:14,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:14,147 INFO L93 Difference]: Finished difference Result 573 states and 772 transitions. [2021-11-20 07:44:14,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 07:44:14,148 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-20 07:44:14,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:14,149 INFO L225 Difference]: With dead ends: 573 [2021-11-20 07:44:14,149 INFO L226 Difference]: Without dead ends: 557 [2021-11-20 07:44:14,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-20 07:44:14,150 INFO L933 BasicCegarLoop]: 476 mSDtfsCounter, 1227 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 3209 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:14,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 3209 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:44:14,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-11-20 07:44:14,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 161. [2021-11-20 07:44:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.23125) internal successors, (197), 160 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 197 transitions. [2021-11-20 07:44:14,238 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 197 transitions. Word has length 90 [2021-11-20 07:44:14,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:14,238 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 197 transitions. [2021-11-20 07:44:14,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:14,238 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 197 transitions. [2021-11-20 07:44:14,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-20 07:44:14,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:14,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:14,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-20 07:44:14,240 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:14,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1829574929, now seen corresponding path program 1 times [2021-11-20 07:44:14,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:14,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646288458] [2021-11-20 07:44:14,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:14,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:14,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:14,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646288458] [2021-11-20 07:44:14,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646288458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:14,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:14,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:44:14,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892667573] [2021-11-20 07:44:14,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:14,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:44:14,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:14,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:44:14,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:44:14,317 INFO L87 Difference]: Start difference. First operand 161 states and 197 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:15,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:15,035 INFO L93 Difference]: Finished difference Result 811 states and 1147 transitions. [2021-11-20 07:44:15,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 07:44:15,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-11-20 07:44:15,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:15,037 INFO L225 Difference]: With dead ends: 811 [2021-11-20 07:44:15,037 INFO L226 Difference]: Without dead ends: 746 [2021-11-20 07:44:15,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:44:15,038 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 1494 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:15,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1494 Valid, 1375 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:44:15,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-11-20 07:44:15,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 224. [2021-11-20 07:44:15,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 1.295964125560538) internal successors, (289), 223 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:15,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 289 transitions. [2021-11-20 07:44:15,254 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 289 transitions. Word has length 118 [2021-11-20 07:44:15,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:15,255 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 289 transitions. [2021-11-20 07:44:15,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 289 transitions. [2021-11-20 07:44:15,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-20 07:44:15,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:15,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:15,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-20 07:44:15,257 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:15,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:15,257 INFO L85 PathProgramCache]: Analyzing trace with hash -58815912, now seen corresponding path program 1 times [2021-11-20 07:44:15,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:15,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890376089] [2021-11-20 07:44:15,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:15,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:15,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:15,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890376089] [2021-11-20 07:44:15,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890376089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:15,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:15,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:44:15,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056751017] [2021-11-20 07:44:15,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:15,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:44:15,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:15,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:44:15,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:44:15,343 INFO L87 Difference]: Start difference. First operand 224 states and 289 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:16,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:16,267 INFO L93 Difference]: Finished difference Result 929 states and 1317 transitions. [2021-11-20 07:44:16,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:44:16,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-20 07:44:16,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:16,268 INFO L225 Difference]: With dead ends: 929 [2021-11-20 07:44:16,268 INFO L226 Difference]: Without dead ends: 801 [2021-11-20 07:44:16,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:44:16,269 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1174 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:16,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1174 Valid, 945 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:44:16,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2021-11-20 07:44:16,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 350. [2021-11-20 07:44:16,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 349 states have (on average 1.3581661891117478) internal successors, (474), 349 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:16,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 474 transitions. [2021-11-20 07:44:16,514 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 474 transitions. Word has length 120 [2021-11-20 07:44:16,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:16,515 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 474 transitions. [2021-11-20 07:44:16,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:16,515 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 474 transitions. [2021-11-20 07:44:16,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-20 07:44:16,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:16,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:16,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-11-20 07:44:16,516 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:16,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:16,516 INFO L85 PathProgramCache]: Analyzing trace with hash 209861823, now seen corresponding path program 1 times [2021-11-20 07:44:16,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:16,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027955343] [2021-11-20 07:44:16,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:16,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:16,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:16,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:16,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027955343] [2021-11-20 07:44:16,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027955343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:16,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:16,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:44:16,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313984750] [2021-11-20 07:44:16,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:16,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:44:16,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:16,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:44:16,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:44:16,563 INFO L87 Difference]: Start difference. First operand 350 states and 474 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:17,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:17,149 INFO L93 Difference]: Finished difference Result 832 states and 1172 transitions. [2021-11-20 07:44:17,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:44:17,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-20 07:44:17,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:17,151 INFO L225 Difference]: With dead ends: 832 [2021-11-20 07:44:17,151 INFO L226 Difference]: Without dead ends: 578 [2021-11-20 07:44:17,151 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 [2021-11-20 07:44:17,154 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 82 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:17,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 457 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:44:17,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2021-11-20 07:44:17,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 576. [2021-11-20 07:44:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.3756521739130434) internal successors, (791), 575 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 791 transitions. [2021-11-20 07:44:17,601 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 791 transitions. Word has length 120 [2021-11-20 07:44:17,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:17,602 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 791 transitions. [2021-11-20 07:44:17,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:17,602 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 791 transitions. [2021-11-20 07:44:17,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-20 07:44:17,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:17,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:17,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-20 07:44:17,603 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:17,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:17,603 INFO L85 PathProgramCache]: Analyzing trace with hash 276355335, now seen corresponding path program 1 times [2021-11-20 07:44:17,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:17,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218618771] [2021-11-20 07:44:17,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:17,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:17,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:17,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218618771] [2021-11-20 07:44:17,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218618771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:17,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:17,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:44:17,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611436642] [2021-11-20 07:44:17,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:17,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:44:17,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:17,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:44:17,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:44:17,754 INFO L87 Difference]: Start difference. First operand 576 states and 791 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:18,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:18,332 INFO L93 Difference]: Finished difference Result 1058 states and 1481 transitions. [2021-11-20 07:44:18,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:44:18,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-20 07:44:18,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:18,333 INFO L225 Difference]: With dead ends: 1058 [2021-11-20 07:44:18,334 INFO L226 Difference]: Without dead ends: 578 [2021-11-20 07:44:18,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:44:18,335 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 626 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:18,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 553 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:44:18,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2021-11-20 07:44:18,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 576. [2021-11-20 07:44:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.3721739130434782) internal successors, (789), 575 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 789 transitions. [2021-11-20 07:44:18,793 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 789 transitions. Word has length 120 [2021-11-20 07:44:18,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:18,793 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 789 transitions. [2021-11-20 07:44:18,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 789 transitions. [2021-11-20 07:44:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-20 07:44:18,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:18,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:18,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-20 07:44:18,795 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:18,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:18,796 INFO L85 PathProgramCache]: Analyzing trace with hash -755626408, now seen corresponding path program 1 times [2021-11-20 07:44:18,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:18,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971364499] [2021-11-20 07:44:18,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:18,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:18,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:18,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:18,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971364499] [2021-11-20 07:44:18,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971364499] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:18,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:18,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:44:18,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927950025] [2021-11-20 07:44:18,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:18,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:44:18,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:18,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:44:18,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:44:18,874 INFO L87 Difference]: Start difference. First operand 576 states and 789 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:20,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:20,387 INFO L93 Difference]: Finished difference Result 1903 states and 2686 transitions. [2021-11-20 07:44:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:44:20,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-20 07:44:20,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:20,392 INFO L225 Difference]: With dead ends: 1903 [2021-11-20 07:44:20,393 INFO L226 Difference]: Without dead ends: 1662 [2021-11-20 07:44:20,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:44:20,394 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 1099 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:20,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1099 Valid, 959 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:44:20,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2021-11-20 07:44:21,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 935. [2021-11-20 07:44:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 934 states have (on average 1.3940042826552463) internal successors, (1302), 934 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:21,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1302 transitions. [2021-11-20 07:44:21,309 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1302 transitions. Word has length 120 [2021-11-20 07:44:21,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:21,309 INFO L470 AbstractCegarLoop]: Abstraction has 935 states and 1302 transitions. [2021-11-20 07:44:21,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:21,310 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1302 transitions. [2021-11-20 07:44:21,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-20 07:44:21,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:21,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:21,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-11-20 07:44:21,311 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:21,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:21,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1539427416, now seen corresponding path program 1 times [2021-11-20 07:44:21,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:21,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259947107] [2021-11-20 07:44:21,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:21,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:21,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:21,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:21,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259947107] [2021-11-20 07:44:21,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259947107] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:21,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:21,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:44:21,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813915939] [2021-11-20 07:44:21,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:21,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:44:21,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:21,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:44:21,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:44:21,399 INFO L87 Difference]: Start difference. First operand 935 states and 1302 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:23,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:23,223 INFO L93 Difference]: Finished difference Result 2142 states and 3028 transitions. [2021-11-20 07:44:23,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:44:23,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-20 07:44:23,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:23,225 INFO L225 Difference]: With dead ends: 2142 [2021-11-20 07:44:23,226 INFO L226 Difference]: Without dead ends: 1901 [2021-11-20 07:44:23,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:44:23,227 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 1019 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:23,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 1042 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:44:23,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2021-11-20 07:44:24,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1174. [2021-11-20 07:44:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 1173 states have (on average 1.4015345268542199) internal successors, (1644), 1173 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:24,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1644 transitions. [2021-11-20 07:44:24,229 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1644 transitions. Word has length 120 [2021-11-20 07:44:24,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:24,229 INFO L470 AbstractCegarLoop]: Abstraction has 1174 states and 1644 transitions. [2021-11-20 07:44:24,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:24,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1644 transitions. [2021-11-20 07:44:24,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-20 07:44:24,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:24,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:24,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-20 07:44:24,231 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:24,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:24,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1420576856, now seen corresponding path program 1 times [2021-11-20 07:44:24,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:24,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869635876] [2021-11-20 07:44:24,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:24,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:24,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:24,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869635876] [2021-11-20 07:44:24,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869635876] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:24,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:24,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:44:24,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283222459] [2021-11-20 07:44:24,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:24,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:44:24,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:24,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:44:24,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:44:24,315 INFO L87 Difference]: Start difference. First operand 1174 states and 1644 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:26,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:26,789 INFO L93 Difference]: Finished difference Result 2381 states and 3370 transitions. [2021-11-20 07:44:26,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:44:26,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-20 07:44:26,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:26,795 INFO L225 Difference]: With dead ends: 2381 [2021-11-20 07:44:26,795 INFO L226 Difference]: Without dead ends: 2140 [2021-11-20 07:44:26,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:44:26,797 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 1051 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:26,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 1160 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:44:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-11-20 07:44:28,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1413. [2021-11-20 07:44:28,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1412 states have (on average 1.406515580736544) internal successors, (1986), 1412 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:28,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1986 transitions. [2021-11-20 07:44:28,139 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1986 transitions. Word has length 120 [2021-11-20 07:44:28,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:28,139 INFO L470 AbstractCegarLoop]: Abstraction has 1413 states and 1986 transitions. [2021-11-20 07:44:28,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:28,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1986 transitions. [2021-11-20 07:44:28,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-20 07:44:28,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:28,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:28,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-20 07:44:28,141 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:28,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:28,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1137378904, now seen corresponding path program 1 times [2021-11-20 07:44:28,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:28,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64767889] [2021-11-20 07:44:28,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:28,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:28,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:28,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:28,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64767889] [2021-11-20 07:44:28,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64767889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:28,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:28,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:44:28,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216078551] [2021-11-20 07:44:28,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:28,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:44:28,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:28,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:44:28,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:44:28,223 INFO L87 Difference]: Start difference. First operand 1413 states and 1986 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:30,486 INFO L93 Difference]: Finished difference Result 2620 states and 3712 transitions. [2021-11-20 07:44:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:44:30,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-20 07:44:30,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:30,489 INFO L225 Difference]: With dead ends: 2620 [2021-11-20 07:44:30,489 INFO L226 Difference]: Without dead ends: 2379 [2021-11-20 07:44:30,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:44:30,490 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1051 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:30,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 1052 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:44:30,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2021-11-20 07:44:31,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 1652. [2021-11-20 07:44:31,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1651 states have (on average 1.4100545124167172) internal successors, (2328), 1651 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:31,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2328 transitions. [2021-11-20 07:44:31,970 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2328 transitions. Word has length 120 [2021-11-20 07:44:31,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:31,971 INFO L470 AbstractCegarLoop]: Abstraction has 1652 states and 2328 transitions. [2021-11-20 07:44:31,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:31,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2328 transitions. [2021-11-20 07:44:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-20 07:44:31,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:31,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:31,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-11-20 07:44:31,972 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:31,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:31,973 INFO L85 PathProgramCache]: Analyzing trace with hash -2068457782, now seen corresponding path program 1 times [2021-11-20 07:44:31,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:31,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167104456] [2021-11-20 07:44:31,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:31,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:32,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:32,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:32,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167104456] [2021-11-20 07:44:32,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167104456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:32,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:32,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:44:32,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92246684] [2021-11-20 07:44:32,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:32,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:44:32,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:32,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:44:32,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:44:32,029 INFO L87 Difference]: Start difference. First operand 1652 states and 2328 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:34,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:34,463 INFO L93 Difference]: Finished difference Result 4127 states and 5843 transitions. [2021-11-20 07:44:34,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:44:34,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-11-20 07:44:34,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:34,466 INFO L225 Difference]: With dead ends: 4127 [2021-11-20 07:44:34,466 INFO L226 Difference]: Without dead ends: 2571 [2021-11-20 07:44:34,467 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 [2021-11-20 07:44:34,468 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 95 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:34,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 421 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:44:34,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2021-11-20 07:44:36,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2465. [2021-11-20 07:44:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2464 states have (on average 1.4042207792207793) internal successors, (3460), 2464 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3460 transitions. [2021-11-20 07:44:36,831 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3460 transitions. Word has length 121 [2021-11-20 07:44:36,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:36,832 INFO L470 AbstractCegarLoop]: Abstraction has 2465 states and 3460 transitions. [2021-11-20 07:44:36,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:36,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3460 transitions. [2021-11-20 07:44:36,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-20 07:44:36,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:36,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:36,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-11-20 07:44:36,834 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:36,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:36,834 INFO L85 PathProgramCache]: Analyzing trace with hash -969611133, now seen corresponding path program 1 times [2021-11-20 07:44:36,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:36,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798714894] [2021-11-20 07:44:36,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:36,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:36,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:36,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:36,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798714894] [2021-11-20 07:44:36,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798714894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:36,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:36,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:44:36,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715815795] [2021-11-20 07:44:36,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:36,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:44:36,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:36,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:44:36,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:44:36,881 INFO L87 Difference]: Start difference. First operand 2465 states and 3460 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:39,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:39,405 INFO L93 Difference]: Finished difference Result 4899 states and 6908 transitions. [2021-11-20 07:44:39,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:44:39,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-20 07:44:39,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:39,408 INFO L225 Difference]: With dead ends: 4899 [2021-11-20 07:44:39,408 INFO L226 Difference]: Without dead ends: 2530 [2021-11-20 07:44:39,411 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 [2021-11-20 07:44:39,411 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 110 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:39,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 319 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:44:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2021-11-20 07:44:41,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2528. [2021-11-20 07:44:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2527 states have (on average 1.3937475267115156) internal successors, (3522), 2527 states have internal predecessors, (3522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:41,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 3522 transitions. [2021-11-20 07:44:41,731 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 3522 transitions. Word has length 122 [2021-11-20 07:44:41,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:41,732 INFO L470 AbstractCegarLoop]: Abstraction has 2528 states and 3522 transitions. [2021-11-20 07:44:41,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:41,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 3522 transitions. [2021-11-20 07:44:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-20 07:44:41,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:41,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:41,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-11-20 07:44:41,734 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:41,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:41,734 INFO L85 PathProgramCache]: Analyzing trace with hash 627156676, now seen corresponding path program 1 times [2021-11-20 07:44:41,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:41,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360289744] [2021-11-20 07:44:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:41,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:41,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:41,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360289744] [2021-11-20 07:44:41,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360289744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:41,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:41,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:44:41,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738629563] [2021-11-20 07:44:41,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:41,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:44:41,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:41,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:44:41,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:44:41,791 INFO L87 Difference]: Start difference. First operand 2528 states and 3522 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:46,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:46,458 INFO L93 Difference]: Finished difference Result 7232 states and 10082 transitions. [2021-11-20 07:44:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:44:46,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-20 07:44:46,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:46,464 INFO L225 Difference]: With dead ends: 7232 [2021-11-20 07:44:46,464 INFO L226 Difference]: Without dead ends: 4800 [2021-11-20 07:44:46,467 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 [2021-11-20 07:44:46,468 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 88 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:46,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 418 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:44:46,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4800 states. [2021-11-20 07:44:50,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4800 to 4638. [2021-11-20 07:44:50,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4638 states, 4637 states have (on average 1.3847315074401552) internal successors, (6421), 4637 states have internal predecessors, (6421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4638 states to 4638 states and 6421 transitions. [2021-11-20 07:44:50,906 INFO L78 Accepts]: Start accepts. Automaton has 4638 states and 6421 transitions. Word has length 122 [2021-11-20 07:44:50,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:50,906 INFO L470 AbstractCegarLoop]: Abstraction has 4638 states and 6421 transitions. [2021-11-20 07:44:50,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:50,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4638 states and 6421 transitions. [2021-11-20 07:44:50,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-20 07:44:50,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:50,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:50,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-11-20 07:44:50,908 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:44:50,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:50,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1032814975, now seen corresponding path program 1 times [2021-11-20 07:44:50,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:50,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710212983] [2021-11-20 07:44:50,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:50,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:50,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:50,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:50,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710212983] [2021-11-20 07:44:50,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710212983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:50,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:50,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:44:50,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17738166] [2021-11-20 07:44:50,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:50,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:44:50,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:50,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:44:50,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:44:50,961 INFO L87 Difference]: Start difference. First operand 4638 states and 6421 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:00,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:45:00,441 INFO L93 Difference]: Finished difference Result 13402 states and 18499 transitions. [2021-11-20 07:45:00,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:45:00,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2021-11-20 07:45:00,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:45:00,450 INFO L225 Difference]: With dead ends: 13402 [2021-11-20 07:45:00,450 INFO L226 Difference]: Without dead ends: 8860 [2021-11-20 07:45:00,455 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 [2021-11-20 07:45:00,455 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 81 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:45:00,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 419 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:45:00,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8860 states. [2021-11-20 07:45:09,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8860 to 8538. [2021-11-20 07:45:09,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8538 states, 8537 states have (on average 1.370387724024833) internal successors, (11699), 8537 states have internal predecessors, (11699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:09,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8538 states to 8538 states and 11699 transitions. [2021-11-20 07:45:09,574 INFO L78 Accepts]: Start accepts. Automaton has 8538 states and 11699 transitions. Word has length 123 [2021-11-20 07:45:09,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:45:09,575 INFO L470 AbstractCegarLoop]: Abstraction has 8538 states and 11699 transitions. [2021-11-20 07:45:09,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:09,575 INFO L276 IsEmpty]: Start isEmpty. Operand 8538 states and 11699 transitions. [2021-11-20 07:45:09,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-20 07:45:09,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:45:09,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:45:09,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-11-20 07:45:09,576 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:45:09,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:09,576 INFO L85 PathProgramCache]: Analyzing trace with hash -144687752, now seen corresponding path program 1 times [2021-11-20 07:45:09,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:09,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912297114] [2021-11-20 07:45:09,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:09,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:09,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:45:09,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:09,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912297114] [2021-11-20 07:45:09,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912297114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:45:09,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:45:09,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:45:09,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336030839] [2021-11-20 07:45:09,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:45:09,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:45:09,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:09,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:45:09,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:45:09,624 INFO L87 Difference]: Start difference. First operand 8538 states and 11699 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:45:26,521 INFO L93 Difference]: Finished difference Result 24782 states and 33773 transitions. [2021-11-20 07:45:26,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:45:26,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2021-11-20 07:45:26,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:45:26,538 INFO L225 Difference]: With dead ends: 24782 [2021-11-20 07:45:26,538 INFO L226 Difference]: Without dead ends: 16340 [2021-11-20 07:45:26,546 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 [2021-11-20 07:45:26,546 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 74 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:45:26,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 419 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:45:26,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16340 states. [2021-11-20 07:45:42,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16340 to 15698. [2021-11-20 07:45:42,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15698 states, 15697 states have (on average 1.3515321398993438) internal successors, (21215), 15697 states have internal predecessors, (21215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:42,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15698 states to 15698 states and 21215 transitions. [2021-11-20 07:45:42,213 INFO L78 Accepts]: Start accepts. Automaton has 15698 states and 21215 transitions. Word has length 124 [2021-11-20 07:45:42,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:45:42,214 INFO L470 AbstractCegarLoop]: Abstraction has 15698 states and 21215 transitions. [2021-11-20 07:45:42,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:42,214 INFO L276 IsEmpty]: Start isEmpty. Operand 15698 states and 21215 transitions. [2021-11-20 07:45:42,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-20 07:45:42,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:45:42,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:45:42,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-11-20 07:45:42,215 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:45:42,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:42,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1164457485, now seen corresponding path program 1 times [2021-11-20 07:45:42,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:42,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465788845] [2021-11-20 07:45:42,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:42,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:45:42,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:42,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465788845] [2021-11-20 07:45:42,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465788845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:45:42,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:45:42,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:45:42,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873403536] [2021-11-20 07:45:42,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:45:42,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:45:42,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:42,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:45:42,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:45:42,269 INFO L87 Difference]: Start difference. First operand 15698 states and 21215 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:46:13,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:46:13,124 INFO L93 Difference]: Finished difference Result 45622 states and 61201 transitions. [2021-11-20 07:46:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:46:13,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-11-20 07:46:13,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:46:13,159 INFO L225 Difference]: With dead ends: 45622 [2021-11-20 07:46:13,160 INFO L226 Difference]: Without dead ends: 30020 [2021-11-20 07:46:13,172 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 [2021-11-20 07:46:13,174 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 64 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:46:13,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 419 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:46:13,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30020 states. [2021-11-20 07:46:43,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30020 to 28738. [2021-11-20 07:46:43,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28738 states, 28737 states have (on average 1.3281483801371055) internal successors, (38167), 28737 states have internal predecessors, (38167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:46:43,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28738 states to 28738 states and 38167 transitions. [2021-11-20 07:46:43,127 INFO L78 Accepts]: Start accepts. Automaton has 28738 states and 38167 transitions. Word has length 125 [2021-11-20 07:46:43,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:46:43,127 INFO L470 AbstractCegarLoop]: Abstraction has 28738 states and 38167 transitions. [2021-11-20 07:46:43,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:46:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 28738 states and 38167 transitions. [2021-11-20 07:46:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-20 07:46:43,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:46:43,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:46:43,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-11-20 07:46:43,128 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:46:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:46:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash 2124750892, now seen corresponding path program 1 times [2021-11-20 07:46:43,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:46:43,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158341396] [2021-11-20 07:46:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:46:43,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:46:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:43,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:46:43,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:46:43,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158341396] [2021-11-20 07:46:43,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158341396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:46:43,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:46:43,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:46:43,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171212088] [2021-11-20 07:46:43,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:46:43,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:46:43,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:46:43,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:46:43,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:46:43,208 INFO L87 Difference]: Start difference. First operand 28738 states and 38167 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 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) [2021-11-20 07:47:31,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:47:31,189 INFO L93 Difference]: Finished difference Result 43727 states and 58003 transitions. [2021-11-20 07:47:31,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:47:31,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 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) Word has length 126 [2021-11-20 07:47:31,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:47:31,245 INFO L225 Difference]: With dead ends: 43727 [2021-11-20 07:47:31,246 INFO L226 Difference]: Without dead ends: 43725 [2021-11-20 07:47:31,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:47:31,254 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 313 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:47:31,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 993 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:47:31,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43725 states. [2021-11-20 07:48:03,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43725 to 29314. [2021-11-20 07:48:03,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29314 states, 29313 states have (on average 1.3140586088083785) internal successors, (38519), 29313 states have internal predecessors, (38519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:48:03,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29314 states to 29314 states and 38519 transitions. [2021-11-20 07:48:03,620 INFO L78 Accepts]: Start accepts. Automaton has 29314 states and 38519 transitions. Word has length 126 [2021-11-20 07:48:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:48:03,620 INFO L470 AbstractCegarLoop]: Abstraction has 29314 states and 38519 transitions. [2021-11-20 07:48:03,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 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) [2021-11-20 07:48:03,621 INFO L276 IsEmpty]: Start isEmpty. Operand 29314 states and 38519 transitions. [2021-11-20 07:48:03,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-20 07:48:03,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:48:03,625 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:48:03,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-11-20 07:48:03,625 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-20 07:48:03,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:03,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1407701576, now seen corresponding path program 1 times [2021-11-20 07:48:03,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:03,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471512544] [2021-11-20 07:48:03,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:03,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:03,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:03,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471512544] [2021-11-20 07:48:03,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471512544] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:48:03,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071784447] [2021-11-20 07:48:03,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:03,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:48:03,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:48:03,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:48:03,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81ac905-e7d3-46b3-b135-e91afbf69ceb/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:48:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:04,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-20 07:48:04,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:48:05,638 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:05,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:48:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:08,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071784447] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:48:08,116 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:48:08,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2021-11-20 07:48:08,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273542882] [2021-11-20 07:48:08,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:48:08,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-20 07:48:08,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:08,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-20 07:48:08,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-11-20 07:48:08,118 INFO L87 Difference]: Start difference. First operand 29314 states and 38519 transitions. Second operand has 27 states, 27 states have (on average 13.814814814814815) internal successors, (373), 26 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)