./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8 --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 b67ecf5848be9c2e67ab202f4088edc38ff4a91991b1583263c2018f06031ba2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:40:42,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:40:42,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:40:42,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:40:42,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:40:42,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:40:42,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:40:42,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:40:42,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:40:42,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:40:42,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:40:42,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:40:42,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:40:42,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:40:42,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:40:42,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:40:42,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:40:42,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:40:42,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:40:42,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:40:42,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:40:42,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:40:42,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:40:42,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:40:42,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:40:42,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:40:42,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:40:42,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:40:42,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:40:42,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:40:42,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:40:42,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:40:42,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:40:42,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:40:42,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:40:42,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:40:42,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:40:42,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:40:42,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:40:42,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:40:42,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:40:42,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:40:42,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:40:42,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:40:42,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:40:42,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:40:42,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:40:42,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:40:42,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:40:42,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:40:42,848 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:40:42,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:40:42,848 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:40:42,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:40:42,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:40:42,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:40:42,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:40:42,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:40:42,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:40:42,850 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:40:42,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:40:42,850 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:40:42,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:40:42,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:40:42,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:40:42,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:40:42,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:40:42,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:40:42,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:40:42,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:40:42,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:40:42,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:40:42,852 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:40:42,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:40:42,852 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:40:42,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:40:42,853 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:40:42,853 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b67ecf5848be9c2e67ab202f4088edc38ff4a91991b1583263c2018f06031ba2 [2022-12-13 14:40:43,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:40:43,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:40:43,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:40:43,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:40:43,079 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:40:43,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-12-13 14:40:45,703 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:40:46,056 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:40:46,057 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-12-13 14:40:46,084 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/data/8938d2d84/ebc4e9639563495aac0a884476752209/FLAGe947e0d62 [2022-12-13 14:40:46,097 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/data/8938d2d84/ebc4e9639563495aac0a884476752209 [2022-12-13 14:40:46,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:40:46,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:40:46,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:40:46,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:40:46,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:40:46,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:40:46" (1/1) ... [2022-12-13 14:40:46,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73050206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:46, skipping insertion in model container [2022-12-13 14:40:46,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:40:46" (1/1) ... [2022-12-13 14:40:46,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:40:46,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:40:46,512 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12458,12471] [2022-12-13 14:40:46,542 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19724,19737] [2022-12-13 14:40:46,553 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22076,22089] [2022-12-13 14:40:46,559 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23196,23209] [2022-12-13 14:40:46,574 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26746,26759] [2022-12-13 14:40:46,579 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27869,27882] [2022-12-13 14:40:46,589 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30184,30197] [2022-12-13 14:40:46,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:40:46,929 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:40:46,966 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12458,12471] [2022-12-13 14:40:46,980 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19724,19737] [2022-12-13 14:40:46,986 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22076,22089] [2022-12-13 14:40:46,989 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23196,23209] [2022-12-13 14:40:46,997 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26746,26759] [2022-12-13 14:40:47,001 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27869,27882] [2022-12-13 14:40:47,006 WARN L237 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_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30184,30197] [2022-12-13 14:40:47,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:40:47,250 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:40:47,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47 WrapperNode [2022-12-13 14:40:47,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:40:47,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:40:47,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:40:47,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:40:47,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,356 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7008 [2022-12-13 14:40:47,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:40:47,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:40:47,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:40:47,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:40:47,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,441 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:40:47,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:40:47,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:40:47,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:40:47,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (1/1) ... [2022-12-13 14:40:47,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:40:47,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:47,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:40:47,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd5d504-26af-4bfc-ae90-c3d546b40d9e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:40:47,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:40:47,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:40:47,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:40:47,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:40:47,780 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:40:47,782 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:40:49,829 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:40:49,844 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:40:49,844 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:40:49,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:49 BoogieIcfgContainer [2022-12-13 14:40:49,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:40:49,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:40:49,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:40:49,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:40:49,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:40:46" (1/3) ... [2022-12-13 14:40:49,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7458b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:40:49, skipping insertion in model container [2022-12-13 14:40:49,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:47" (2/3) ... [2022-12-13 14:40:49,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7458b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:40:49, skipping insertion in model container [2022-12-13 14:40:49,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:49" (3/3) ... [2022-12-13 14:40:49,853 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-12-13 14:40:49,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:40:49,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-13 14:40:49,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:40:49,922 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3973d3d8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:40:49,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 14:40:49,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 1106 states, 1098 states have (on average 1.8852459016393444) internal successors, (2070), 1105 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:49,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 14:40:49,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:49,943 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:40:49,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:40:49,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:49,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1160265217, now seen corresponding path program 1 times [2022-12-13 14:40:49,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:49,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453775116] [2022-12-13 14:40:49,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:49,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:50,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:50,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:50,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453775116] [2022-12-13 14:40:50,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453775116] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:50,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:50,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:40:50,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831496641] [2022-12-13 14:40:50,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:50,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:40:50,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:50,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:40:50,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:40:50,274 INFO L87 Difference]: Start difference. First operand has 1106 states, 1098 states have (on average 1.8852459016393444) internal successors, (2070), 1105 states have internal predecessors, (2070), 0 states have call successors, (0), 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 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:50,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:50,582 INFO L93 Difference]: Finished difference Result 1465 states and 2651 transitions. [2022-12-13 14:40:50,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:40:50,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-12-13 14:40:50,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:50,600 INFO L225 Difference]: With dead ends: 1465 [2022-12-13 14:40:50,600 INFO L226 Difference]: Without dead ends: 1288 [2022-12-13 14:40:50,603 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:40:50,605 INFO L413 NwaCegarLoop]: 2055 mSDtfsCounter, 969 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:50,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 3330 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:40:50,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2022-12-13 14:40:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1280. [2022-12-13 14:40:50,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1273 states have (on average 1.3165750196386488) internal successors, (1676), 1279 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:50,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1676 transitions. [2022-12-13 14:40:50,693 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1676 transitions. Word has length 64 [2022-12-13 14:40:50,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:50,694 INFO L495 AbstractCegarLoop]: Abstraction has 1280 states and 1676 transitions. [2022-12-13 14:40:50,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:50,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1676 transitions. [2022-12-13 14:40:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 14:40:50,698 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:50,698 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:40:50,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:40:50,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:40:50,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:50,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1978887998, now seen corresponding path program 1 times [2022-12-13 14:40:50,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:50,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126828126] [2022-12-13 14:40:50,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:50,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:50,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:50,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126828126] [2022-12-13 14:40:50,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126828126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:50,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:50,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:40:50,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813463402] [2022-12-13 14:40:50,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:50,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:40:50,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:50,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:40:50,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:40:50,843 INFO L87 Difference]: Start difference. First operand 1280 states and 1676 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:50,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:50,967 INFO L93 Difference]: Finished difference Result 1930 states and 2622 transitions. [2022-12-13 14:40:50,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:40:50,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-12-13 14:40:50,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:50,974 INFO L225 Difference]: With dead ends: 1930 [2022-12-13 14:40:50,974 INFO L226 Difference]: Without dead ends: 1576 [2022-12-13 14:40:50,976 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:40:50,977 INFO L413 NwaCegarLoop]: 1424 mSDtfsCounter, 717 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:50,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 2315 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:40:50,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-12-13 14:40:51,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1568. [2022-12-13 14:40:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1561 states have (on average 1.3401665598975017) internal successors, (2092), 1567 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2092 transitions. [2022-12-13 14:40:51,057 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2092 transitions. Word has length 64 [2022-12-13 14:40:51,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:51,057 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2092 transitions. [2022-12-13 14:40:51,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2092 transitions. [2022-12-13 14:40:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 14:40:51,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:51,062 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:40:51,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:40:51,062 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:40:51,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:51,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1566940908, now seen corresponding path program 1 times [2022-12-13 14:40:51,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:51,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406213329] [2022-12-13 14:40:51,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:51,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:51,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:51,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406213329] [2022-12-13 14:40:51,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406213329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:51,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:51,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:40:51,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592646740] [2022-12-13 14:40:51,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:51,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:40:51,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:51,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:40:51,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:40:51,246 INFO L87 Difference]: Start difference. First operand 1568 states and 2092 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:51,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:51,830 INFO L93 Difference]: Finished difference Result 3042 states and 4184 transitions. [2022-12-13 14:40:51,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:40:51,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-12-13 14:40:51,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:51,835 INFO L225 Difference]: With dead ends: 3042 [2022-12-13 14:40:51,835 INFO L226 Difference]: Without dead ends: 1783 [2022-12-13 14:40:51,836 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:40:51,837 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 3665 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3665 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:51,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3665 Valid, 834 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:40:51,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2022-12-13 14:40:51,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1775. [2022-12-13 14:40:51,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1768 states have (on average 1.3885746606334841) internal successors, (2455), 1774 states have internal predecessors, (2455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2455 transitions. [2022-12-13 14:40:51,898 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2455 transitions. Word has length 64 [2022-12-13 14:40:51,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:51,899 INFO L495 AbstractCegarLoop]: Abstraction has 1775 states and 2455 transitions. [2022-12-13 14:40:51,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:51,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2455 transitions. [2022-12-13 14:40:51,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 14:40:51,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:51,901 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:40:51,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:40:51,901 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:40:51,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:51,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1913482263, now seen corresponding path program 1 times [2022-12-13 14:40:51,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:51,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987842537] [2022-12-13 14:40:51,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:51,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:51,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:51,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987842537] [2022-12-13 14:40:51,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987842537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:51,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:51,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:40:51,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98203494] [2022-12-13 14:40:51,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:51,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:40:51,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:51,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:40:51,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:40:51,993 INFO L87 Difference]: Start difference. First operand 1775 states and 2455 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:52,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:52,165 INFO L93 Difference]: Finished difference Result 3469 states and 4871 transitions. [2022-12-13 14:40:52,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:40:52,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-12-13 14:40:52,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:52,171 INFO L225 Difference]: With dead ends: 3469 [2022-12-13 14:40:52,171 INFO L226 Difference]: Without dead ends: 2489 [2022-12-13 14:40:52,172 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:40:52,173 INFO L413 NwaCegarLoop]: 1421 mSDtfsCounter, 897 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:52,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 2138 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:40:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2022-12-13 14:40:52,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2477. [2022-12-13 14:40:52,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2470 states have (on average 1.374493927125506) internal successors, (3395), 2476 states have internal predecessors, (3395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:52,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3395 transitions. [2022-12-13 14:40:52,268 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3395 transitions. Word has length 65 [2022-12-13 14:40:52,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:52,269 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3395 transitions. [2022-12-13 14:40:52,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:52,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3395 transitions. [2022-12-13 14:40:52,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 14:40:52,271 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:52,271 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:40:52,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:40:52,272 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:40:52,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:52,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1759204869, now seen corresponding path program 1 times [2022-12-13 14:40:52,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:52,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837562202] [2022-12-13 14:40:52,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:52,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:52,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:52,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:52,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837562202] [2022-12-13 14:40:52,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837562202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:52,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:52,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:40:52,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86412943] [2022-12-13 14:40:52,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:52,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:40:52,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:52,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:40:52,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:40:52,368 INFO L87 Difference]: Start difference. First operand 2477 states and 3395 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:52,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:52,982 INFO L93 Difference]: Finished difference Result 4728 states and 6563 transitions. [2022-12-13 14:40:52,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:40:52,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-12-13 14:40:52,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:52,988 INFO L225 Difference]: With dead ends: 4728 [2022-12-13 14:40:52,988 INFO L226 Difference]: Without dead ends: 2856 [2022-12-13 14:40:52,991 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:40:52,992 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 3060 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:52,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3060 Valid, 696 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:40:52,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2022-12-13 14:40:53,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2842. [2022-12-13 14:40:53,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2835 states have (on average 1.366137566137566) internal successors, (3873), 2841 states have internal predecessors, (3873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:53,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3873 transitions. [2022-12-13 14:40:53,135 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3873 transitions. Word has length 65 [2022-12-13 14:40:53,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:53,135 INFO L495 AbstractCegarLoop]: Abstraction has 2842 states and 3873 transitions. [2022-12-13 14:40:53,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3873 transitions. [2022-12-13 14:40:53,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 14:40:53,139 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:53,139 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:40:53,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:40:53,139 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:40:53,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:53,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1773849621, now seen corresponding path program 1 times [2022-12-13 14:40:53,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:53,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838401237] [2022-12-13 14:40:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:53,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:53,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:53,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838401237] [2022-12-13 14:40:53,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838401237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:53,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:53,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:40:53,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080254753] [2022-12-13 14:40:53,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:53,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:40:53,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:53,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:40:53,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:40:53,250 INFO L87 Difference]: Start difference. First operand 2842 states and 3873 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:53,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:53,851 INFO L93 Difference]: Finished difference Result 6738 states and 9400 transitions. [2022-12-13 14:40:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:40:53,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-12-13 14:40:53,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:53,864 INFO L225 Difference]: With dead ends: 6738 [2022-12-13 14:40:53,865 INFO L226 Difference]: Without dead ends: 4186 [2022-12-13 14:40:53,868 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:40:53,869 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 2725 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:53,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 645 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:40:53,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2022-12-13 14:40:54,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 4178. [2022-12-13 14:40:54,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4178 states, 4171 states have (on average 1.3955885878686167) internal successors, (5821), 4177 states have internal predecessors, (5821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:54,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4178 states to 4178 states and 5821 transitions. [2022-12-13 14:40:54,095 INFO L78 Accepts]: Start accepts. Automaton has 4178 states and 5821 transitions. Word has length 65 [2022-12-13 14:40:54,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:54,096 INFO L495 AbstractCegarLoop]: Abstraction has 4178 states and 5821 transitions. [2022-12-13 14:40:54,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:54,096 INFO L276 IsEmpty]: Start isEmpty. Operand 4178 states and 5821 transitions. [2022-12-13 14:40:54,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-13 14:40:54,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:54,100 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:40:54,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:40:54,101 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:40:54,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:54,101 INFO L85 PathProgramCache]: Analyzing trace with hash -2076438910, now seen corresponding path program 1 times [2022-12-13 14:40:54,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:54,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862796022] [2022-12-13 14:40:54,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:54,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:54,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:54,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862796022] [2022-12-13 14:40:54,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862796022] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:54,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:54,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:40:54,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132262968] [2022-12-13 14:40:54,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:54,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:40:54,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:54,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:40:54,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:40:54,158 INFO L87 Difference]: Start difference. First operand 4178 states and 5821 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:54,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:54,521 INFO L93 Difference]: Finished difference Result 8947 states and 12566 transitions. [2022-12-13 14:40:54,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:40:54,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-12-13 14:40:54,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:54,536 INFO L225 Difference]: With dead ends: 8947 [2022-12-13 14:40:54,536 INFO L226 Difference]: Without dead ends: 5787 [2022-12-13 14:40:54,539 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:40:54,540 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 584 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:54,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1530 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:40:54,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5787 states. [2022-12-13 14:40:54,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5787 to 5761. [2022-12-13 14:40:54,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5761 states, 5754 states have (on average 1.3722627737226278) internal successors, (7896), 5760 states have internal predecessors, (7896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:54,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5761 states to 5761 states and 7896 transitions. [2022-12-13 14:40:54,837 INFO L78 Accepts]: Start accepts. Automaton has 5761 states and 7896 transitions. Word has length 66 [2022-12-13 14:40:54,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:54,837 INFO L495 AbstractCegarLoop]: Abstraction has 5761 states and 7896 transitions. [2022-12-13 14:40:54,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:54,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5761 states and 7896 transitions. [2022-12-13 14:40:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 14:40:54,843 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:54,844 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:40:54,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:40:54,844 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:40:54,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1790108590, now seen corresponding path program 1 times [2022-12-13 14:40:54,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:54,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140919368] [2022-12-13 14:40:54,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:54,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:54,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:54,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140919368] [2022-12-13 14:40:54,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140919368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:54,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:54,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:40:54,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925993319] [2022-12-13 14:40:54,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:54,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:40:54,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:54,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:40:54,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:40:54,956 INFO L87 Difference]: Start difference. First operand 5761 states and 7896 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:55,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:55,849 INFO L93 Difference]: Finished difference Result 12941 states and 17876 transitions. [2022-12-13 14:40:55,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:40:55,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-12-13 14:40:55,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:55,865 INFO L225 Difference]: With dead ends: 12941 [2022-12-13 14:40:55,865 INFO L226 Difference]: Without dead ends: 7617 [2022-12-13 14:40:55,870 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:40:55,871 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 2385 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:55,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 580 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:40:55,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7617 states. [2022-12-13 14:40:56,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7617 to 7582. [2022-12-13 14:40:56,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7582 states, 7575 states have (on average 1.372145214521452) internal successors, (10394), 7581 states have internal predecessors, (10394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:56,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7582 states to 7582 states and 10394 transitions. [2022-12-13 14:40:56,297 INFO L78 Accepts]: Start accepts. Automaton has 7582 states and 10394 transitions. Word has length 67 [2022-12-13 14:40:56,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:56,297 INFO L495 AbstractCegarLoop]: Abstraction has 7582 states and 10394 transitions. [2022-12-13 14:40:56,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:56,297 INFO L276 IsEmpty]: Start isEmpty. Operand 7582 states and 10394 transitions. [2022-12-13 14:40:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 14:40:56,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:56,301 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:40:56,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:40:56,301 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:40:56,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:56,301 INFO L85 PathProgramCache]: Analyzing trace with hash 185593086, now seen corresponding path program 1 times [2022-12-13 14:40:56,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:56,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683723102] [2022-12-13 14:40:56,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:56,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:56,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:56,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683723102] [2022-12-13 14:40:56,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683723102] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:56,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:56,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:56,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503388356] [2022-12-13 14:40:56,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:56,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:40:56,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:56,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:40:56,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:40:56,434 INFO L87 Difference]: Start difference. First operand 7582 states and 10394 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:59,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:59,581 INFO L93 Difference]: Finished difference Result 37661 states and 52823 transitions. [2022-12-13 14:40:59,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:40:59,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-12-13 14:40:59,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:59,647 INFO L225 Difference]: With dead ends: 37661 [2022-12-13 14:40:59,647 INFO L226 Difference]: Without dead ends: 34010 [2022-12-13 14:40:59,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:40:59,655 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 5101 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:59,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5101 Valid, 1133 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:40:59,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34010 states. [2022-12-13 14:41:00,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34010 to 7650. [2022-12-13 14:41:00,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7650 states, 7643 states have (on average 1.3714510009158707) internal successors, (10482), 7649 states have internal predecessors, (10482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:00,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7650 states to 7650 states and 10482 transitions. [2022-12-13 14:41:00,498 INFO L78 Accepts]: Start accepts. Automaton has 7650 states and 10482 transitions. Word has length 68 [2022-12-13 14:41:00,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:00,498 INFO L495 AbstractCegarLoop]: Abstraction has 7650 states and 10482 transitions. [2022-12-13 14:41:00,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:00,498 INFO L276 IsEmpty]: Start isEmpty. Operand 7650 states and 10482 transitions. [2022-12-13 14:41:00,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 14:41:00,501 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:00,501 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:41:00,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 14:41:00,502 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:41:00,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:00,502 INFO L85 PathProgramCache]: Analyzing trace with hash 290423248, now seen corresponding path program 1 times [2022-12-13 14:41:00,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:00,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608814634] [2022-12-13 14:41:00,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:00,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:41:00,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:00,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608814634] [2022-12-13 14:41:00,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608814634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:00,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:00,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:41:00,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484325352] [2022-12-13 14:41:00,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:00,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:41:00,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:00,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:41:00,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:41:00,629 INFO L87 Difference]: Start difference. First operand 7650 states and 10482 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:05,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:05,024 INFO L93 Difference]: Finished difference Result 33564 states and 46915 transitions. [2022-12-13 14:41:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:41:05,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-12-13 14:41:05,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:05,063 INFO L225 Difference]: With dead ends: 33564 [2022-12-13 14:41:05,063 INFO L226 Difference]: Without dead ends: 30095 [2022-12-13 14:41:05,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:41:05,070 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 4644 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4644 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:05,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4644 Valid, 1119 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:41:05,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30095 states. [2022-12-13 14:41:06,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30095 to 7772. [2022-12-13 14:41:06,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7772 states, 7765 states have (on average 1.3707662588538312) internal successors, (10644), 7771 states have internal predecessors, (10644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:06,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7772 states to 7772 states and 10644 transitions. [2022-12-13 14:41:06,052 INFO L78 Accepts]: Start accepts. Automaton has 7772 states and 10644 transitions. Word has length 68 [2022-12-13 14:41:06,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:06,053 INFO L495 AbstractCegarLoop]: Abstraction has 7772 states and 10644 transitions. [2022-12-13 14:41:06,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:06,053 INFO L276 IsEmpty]: Start isEmpty. Operand 7772 states and 10644 transitions. [2022-12-13 14:41:06,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 14:41:06,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:06,056 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:41:06,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 14:41:06,056 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:41:06,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:06,056 INFO L85 PathProgramCache]: Analyzing trace with hash -770234336, now seen corresponding path program 1 times [2022-12-13 14:41:06,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:06,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135328134] [2022-12-13 14:41:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:06,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:41:06,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:06,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135328134] [2022-12-13 14:41:06,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135328134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:06,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:06,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:41:06,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358512563] [2022-12-13 14:41:06,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:06,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:41:06,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:06,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:41:06,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:41:06,157 INFO L87 Difference]: Start difference. First operand 7772 states and 10644 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:11,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:11,496 INFO L93 Difference]: Finished difference Result 29404 states and 40968 transitions. [2022-12-13 14:41:11,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:41:11,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-12-13 14:41:11,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:11,524 INFO L225 Difference]: With dead ends: 29404 [2022-12-13 14:41:11,524 INFO L226 Difference]: Without dead ends: 26199 [2022-12-13 14:41:11,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:41:11,530 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 3377 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:11,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 1245 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:41:11,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26199 states. [2022-12-13 14:41:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26199 to 7843. [2022-12-13 14:41:12,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7843 states, 7836 states have (on average 1.3709800918836141) internal successors, (10743), 7842 states have internal predecessors, (10743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:12,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7843 states to 7843 states and 10743 transitions. [2022-12-13 14:41:12,866 INFO L78 Accepts]: Start accepts. Automaton has 7843 states and 10743 transitions. Word has length 68 [2022-12-13 14:41:12,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:12,867 INFO L495 AbstractCegarLoop]: Abstraction has 7843 states and 10743 transitions. [2022-12-13 14:41:12,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:12,867 INFO L276 IsEmpty]: Start isEmpty. Operand 7843 states and 10743 transitions. [2022-12-13 14:41:12,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 14:41:12,870 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:12,870 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:41:12,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 14:41:12,870 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:41:12,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:12,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2053099389, now seen corresponding path program 1 times [2022-12-13 14:41:12,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:12,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466462920] [2022-12-13 14:41:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:12,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:41:13,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:13,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466462920] [2022-12-13 14:41:13,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466462920] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:13,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:13,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:41:13,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205085618] [2022-12-13 14:41:13,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:13,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:41:13,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:13,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:41:13,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:41:13,009 INFO L87 Difference]: Start difference. First operand 7843 states and 10743 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:17,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:17,746 INFO L93 Difference]: Finished difference Result 26992 states and 37397 transitions. [2022-12-13 14:41:17,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:41:17,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-12-13 14:41:17,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:17,767 INFO L225 Difference]: With dead ends: 26992 [2022-12-13 14:41:17,768 INFO L226 Difference]: Without dead ends: 23321 [2022-12-13 14:41:17,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:41:17,773 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 4495 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:17,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4495 Valid, 1072 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:41:17,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23321 states. [2022-12-13 14:41:19,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23321 to 7878. [2022-12-13 14:41:19,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7878 states, 7871 states have (on average 1.3706009401600814) internal successors, (10788), 7877 states have internal predecessors, (10788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:19,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7878 states to 7878 states and 10788 transitions. [2022-12-13 14:41:19,068 INFO L78 Accepts]: Start accepts. Automaton has 7878 states and 10788 transitions. Word has length 68 [2022-12-13 14:41:19,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:19,069 INFO L495 AbstractCegarLoop]: Abstraction has 7878 states and 10788 transitions. [2022-12-13 14:41:19,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:19,069 INFO L276 IsEmpty]: Start isEmpty. Operand 7878 states and 10788 transitions. [2022-12-13 14:41:19,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 14:41:19,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:19,072 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:41:19,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 14:41:19,072 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:41:19,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:19,073 INFO L85 PathProgramCache]: Analyzing trace with hash 43383936, now seen corresponding path program 1 times [2022-12-13 14:41:19,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:19,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653416596] [2022-12-13 14:41:19,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:19,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:41:19,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:19,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653416596] [2022-12-13 14:41:19,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653416596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:19,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:19,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:41:19,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712305878] [2022-12-13 14:41:19,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:19,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:41:19,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:41:19,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:41:19,301 INFO L87 Difference]: Start difference. First operand 7878 states and 10788 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:23,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:23,821 INFO L93 Difference]: Finished difference Result 21561 states and 30031 transitions. [2022-12-13 14:41:23,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:41:23,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-12-13 14:41:23,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:23,845 INFO L225 Difference]: With dead ends: 21561 [2022-12-13 14:41:23,845 INFO L226 Difference]: Without dead ends: 16048 [2022-12-13 14:41:23,852 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:41:23,852 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 3420 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:23,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3420 Valid, 1851 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 14:41:23,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16048 states. [2022-12-13 14:41:25,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16048 to 7572. [2022-12-13 14:41:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7572 states, 7565 states have (on average 1.3688037012557832) internal successors, (10355), 7571 states have internal predecessors, (10355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:25,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7572 states to 7572 states and 10355 transitions. [2022-12-13 14:41:25,258 INFO L78 Accepts]: Start accepts. Automaton has 7572 states and 10355 transitions. Word has length 69 [2022-12-13 14:41:25,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:25,258 INFO L495 AbstractCegarLoop]: Abstraction has 7572 states and 10355 transitions. [2022-12-13 14:41:25,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:25,259 INFO L276 IsEmpty]: Start isEmpty. Operand 7572 states and 10355 transitions. [2022-12-13 14:41:25,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 14:41:25,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:25,262 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:41:25,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 14:41:25,262 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:41:25,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:25,262 INFO L85 PathProgramCache]: Analyzing trace with hash 80806030, now seen corresponding path program 1 times [2022-12-13 14:41:25,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:25,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849305730] [2022-12-13 14:41:25,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:25,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:41:25,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:25,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849305730] [2022-12-13 14:41:25,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849305730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:25,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:25,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:41:25,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762761319] [2022-12-13 14:41:25,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:25,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:41:25,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:25,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:41:25,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:41:25,472 INFO L87 Difference]: Start difference. First operand 7572 states and 10355 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:30,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:30,851 INFO L93 Difference]: Finished difference Result 24651 states and 34492 transitions. [2022-12-13 14:41:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:41:30,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-12-13 14:41:30,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:30,868 INFO L225 Difference]: With dead ends: 24651 [2022-12-13 14:41:30,868 INFO L226 Difference]: Without dead ends: 19596 [2022-12-13 14:41:30,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 14:41:30,874 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 3506 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3506 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:30,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3506 Valid, 2589 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:41:30,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19596 states. [2022-12-13 14:41:32,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19596 to 7437. [2022-12-13 14:41:32,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7437 states, 7430 states have (on average 1.3682368775235532) internal successors, (10166), 7436 states have internal predecessors, (10166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7437 states to 7437 states and 10166 transitions. [2022-12-13 14:41:32,347 INFO L78 Accepts]: Start accepts. Automaton has 7437 states and 10166 transitions. Word has length 69 [2022-12-13 14:41:32,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:32,347 INFO L495 AbstractCegarLoop]: Abstraction has 7437 states and 10166 transitions. [2022-12-13 14:41:32,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:32,347 INFO L276 IsEmpty]: Start isEmpty. Operand 7437 states and 10166 transitions. [2022-12-13 14:41:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 14:41:32,350 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:32,350 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:41:32,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 14:41:32,350 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:41:32,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:32,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1560265185, now seen corresponding path program 1 times [2022-12-13 14:41:32,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:32,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425205929] [2022-12-13 14:41:32,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:32,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:32,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:41:32,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:32,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425205929] [2022-12-13 14:41:32,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425205929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:32,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:32,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:41:32,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780251878] [2022-12-13 14:41:32,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:32,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:41:32,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:32,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:41:32,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:41:32,527 INFO L87 Difference]: Start difference. First operand 7437 states and 10166 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:37,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:37,898 INFO L93 Difference]: Finished difference Result 24344 states and 34067 transitions. [2022-12-13 14:41:37,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:41:37,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-12-13 14:41:37,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:37,916 INFO L225 Difference]: With dead ends: 24344 [2022-12-13 14:41:37,916 INFO L226 Difference]: Without dead ends: 19513 [2022-12-13 14:41:37,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 14:41:37,922 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 3708 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3708 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:37,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3708 Valid, 2160 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:41:37,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19513 states. [2022-12-13 14:41:39,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19513 to 7413. [2022-12-13 14:41:39,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7413 states, 7406 states have (on average 1.3674048069133136) internal successors, (10127), 7412 states have internal predecessors, (10127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 10127 transitions. [2022-12-13 14:41:39,555 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 10127 transitions. Word has length 69 [2022-12-13 14:41:39,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:39,555 INFO L495 AbstractCegarLoop]: Abstraction has 7413 states and 10127 transitions. [2022-12-13 14:41:39,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:39,555 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 10127 transitions. [2022-12-13 14:41:39,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 14:41:39,558 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:39,558 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:41:39,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 14:41:39,558 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:41:39,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:39,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1474423363, now seen corresponding path program 1 times [2022-12-13 14:41:39,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:39,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894121890] [2022-12-13 14:41:39,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:39,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:41:39,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:39,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894121890] [2022-12-13 14:41:39,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894121890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:39,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:39,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:41:39,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738538543] [2022-12-13 14:41:39,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:39,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:41:39,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:39,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:41:39,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:41:39,759 INFO L87 Difference]: Start difference. First operand 7413 states and 10127 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:45,717 INFO L93 Difference]: Finished difference Result 24149 states and 33784 transitions. [2022-12-13 14:41:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:41:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-12-13 14:41:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:45,735 INFO L225 Difference]: With dead ends: 24149 [2022-12-13 14:41:45,735 INFO L226 Difference]: Without dead ends: 19351 [2022-12-13 14:41:45,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-13 14:41:45,740 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 3672 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3672 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:45,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3672 Valid, 2192 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:41:45,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19351 states. [2022-12-13 14:41:47,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19351 to 7404. [2022-12-13 14:41:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7404 states, 7397 states have (on average 1.3667703122887658) internal successors, (10110), 7403 states have internal predecessors, (10110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7404 states to 7404 states and 10110 transitions. [2022-12-13 14:41:47,465 INFO L78 Accepts]: Start accepts. Automaton has 7404 states and 10110 transitions. Word has length 69 [2022-12-13 14:41:47,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:47,465 INFO L495 AbstractCegarLoop]: Abstraction has 7404 states and 10110 transitions. [2022-12-13 14:41:47,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:47,465 INFO L276 IsEmpty]: Start isEmpty. Operand 7404 states and 10110 transitions. [2022-12-13 14:41:47,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-13 14:41:47,467 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:47,468 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:41:47,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 14:41:47,468 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:41:47,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:47,468 INFO L85 PathProgramCache]: Analyzing trace with hash -688548458, now seen corresponding path program 1 times [2022-12-13 14:41:47,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:47,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403424187] [2022-12-13 14:41:47,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:47,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:41:47,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:47,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403424187] [2022-12-13 14:41:47,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403424187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:47,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:47,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 14:41:47,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400835694] [2022-12-13 14:41:47,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:47,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:41:47,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:47,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:41:47,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:41:47,899 INFO L87 Difference]: Start difference. First operand 7404 states and 10110 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:59,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:59,623 INFO L93 Difference]: Finished difference Result 36619 states and 51613 transitions. [2022-12-13 14:41:59,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:41:59,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-12-13 14:41:59,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:59,653 INFO L225 Difference]: With dead ends: 36619 [2022-12-13 14:41:59,653 INFO L226 Difference]: Without dead ends: 31824 [2022-12-13 14:41:59,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-12-13 14:41:59,661 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 3862 mSDsluCounter, 4708 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3862 SdHoareTripleChecker+Valid, 5560 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:59,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3862 Valid, 5560 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 14:41:59,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31824 states. [2022-12-13 14:42:01,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31824 to 7390. [2022-12-13 14:42:01,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7390 states, 7384 states have (on average 1.3657908992416035) internal successors, (10085), 7389 states have internal predecessors, (10085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:01,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7390 states to 7390 states and 10085 transitions. [2022-12-13 14:42:01,772 INFO L78 Accepts]: Start accepts. Automaton has 7390 states and 10085 transitions. Word has length 70 [2022-12-13 14:42:01,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:42:01,773 INFO L495 AbstractCegarLoop]: Abstraction has 7390 states and 10085 transitions. [2022-12-13 14:42:01,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:01,773 INFO L276 IsEmpty]: Start isEmpty. Operand 7390 states and 10085 transitions. [2022-12-13 14:42:01,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-13 14:42:01,775 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:42:01,776 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:42:01,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 14:42:01,776 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:42:01,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:01,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1142484158, now seen corresponding path program 1 times [2022-12-13 14:42:01,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:01,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534050735] [2022-12-13 14:42:01,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:01,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:02,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:02,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534050735] [2022-12-13 14:42:02,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534050735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:02,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:02,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 14:42:02,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783201902] [2022-12-13 14:42:02,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:02,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:42:02,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:02,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:42:02,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:42:02,195 INFO L87 Difference]: Start difference. First operand 7390 states and 10085 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:20,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:42:20,668 INFO L93 Difference]: Finished difference Result 45271 states and 63572 transitions. [2022-12-13 14:42:20,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 14:42:20,669 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-12-13 14:42:20,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:42:20,712 INFO L225 Difference]: With dead ends: 45271 [2022-12-13 14:42:20,712 INFO L226 Difference]: Without dead ends: 40214 [2022-12-13 14:42:20,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2022-12-13 14:42:20,723 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 5780 mSDsluCounter, 3593 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5780 SdHoareTripleChecker+Valid, 4594 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:42:20,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5780 Valid, 4594 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 14:42:20,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40214 states. [2022-12-13 14:42:23,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40214 to 7141. [2022-12-13 14:42:23,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7141 states, 7136 states have (on average 1.3628082959641257) internal successors, (9725), 7140 states have internal predecessors, (9725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7141 states to 7141 states and 9725 transitions. [2022-12-13 14:42:23,352 INFO L78 Accepts]: Start accepts. Automaton has 7141 states and 9725 transitions. Word has length 70 [2022-12-13 14:42:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:42:23,352 INFO L495 AbstractCegarLoop]: Abstraction has 7141 states and 9725 transitions. [2022-12-13 14:42:23,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7141 states and 9725 transitions. [2022-12-13 14:42:23,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-13 14:42:23,355 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:42:23,355 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:42:23,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 14:42:23,355 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:42:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:23,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1346201798, now seen corresponding path program 1 times [2022-12-13 14:42:23,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:23,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710390804] [2022-12-13 14:42:23,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:23,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:23,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:23,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710390804] [2022-12-13 14:42:23,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710390804] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:23,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:23,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:42:23,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072771189] [2022-12-13 14:42:23,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:23,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:42:23,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:23,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:42:23,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:42:23,396 INFO L87 Difference]: Start difference. First operand 7141 states and 9725 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:25,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:42:25,897 INFO L93 Difference]: Finished difference Result 10863 states and 14917 transitions. [2022-12-13 14:42:25,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:42:25,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-12-13 14:42:25,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:42:25,904 INFO L225 Difference]: With dead ends: 10863 [2022-12-13 14:42:25,904 INFO L226 Difference]: Without dead ends: 7147 [2022-12-13 14:42:25,906 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:42:25,907 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 427 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:42:25,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1356 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:42:25,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7147 states. [2022-12-13 14:42:28,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7147 to 7141. [2022-12-13 14:42:28,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7141 states, 7136 states have (on average 1.3531390134529149) internal successors, (9656), 7140 states have internal predecessors, (9656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:28,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7141 states to 7141 states and 9656 transitions. [2022-12-13 14:42:28,371 INFO L78 Accepts]: Start accepts. Automaton has 7141 states and 9656 transitions. Word has length 70 [2022-12-13 14:42:28,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:42:28,372 INFO L495 AbstractCegarLoop]: Abstraction has 7141 states and 9656 transitions. [2022-12-13 14:42:28,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:28,372 INFO L276 IsEmpty]: Start isEmpty. Operand 7141 states and 9656 transitions. [2022-12-13 14:42:28,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-13 14:42:28,374 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:42:28,374 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:42:28,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 14:42:28,374 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:42:28,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:28,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1360936426, now seen corresponding path program 1 times [2022-12-13 14:42:28,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:28,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883309788] [2022-12-13 14:42:28,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:28,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:28,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:28,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:28,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883309788] [2022-12-13 14:42:28,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883309788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:28,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:28,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 14:42:28,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688519829] [2022-12-13 14:42:28,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:28,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:42:28,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:28,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:42:28,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:42:28,709 INFO L87 Difference]: Start difference. First operand 7141 states and 9656 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:40,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:42:40,564 INFO L93 Difference]: Finished difference Result 30021 states and 41668 transitions. [2022-12-13 14:42:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:42:40,565 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-12-13 14:42:40,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:42:40,588 INFO L225 Difference]: With dead ends: 30021 [2022-12-13 14:42:40,588 INFO L226 Difference]: Without dead ends: 24961 [2022-12-13 14:42:40,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-12-13 14:42:40,594 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 4110 mSDsluCounter, 4905 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4110 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:42:40,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4110 Valid, 5829 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:42:40,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24961 states. [2022-12-13 14:42:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24961 to 6856. [2022-12-13 14:42:43,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6856 states, 6853 states have (on average 1.3544433094994892) internal successors, (9282), 6855 states have internal predecessors, (9282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6856 states to 6856 states and 9282 transitions. [2022-12-13 14:42:43,491 INFO L78 Accepts]: Start accepts. Automaton has 6856 states and 9282 transitions. Word has length 70 [2022-12-13 14:42:43,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:42:43,491 INFO L495 AbstractCegarLoop]: Abstraction has 6856 states and 9282 transitions. [2022-12-13 14:42:43,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:43,491 INFO L276 IsEmpty]: Start isEmpty. Operand 6856 states and 9282 transitions. [2022-12-13 14:42:43,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-13 14:42:43,494 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:42:43,494 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:42:43,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 14:42:43,494 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:42:43,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:43,494 INFO L85 PathProgramCache]: Analyzing trace with hash -452169058, now seen corresponding path program 1 times [2022-12-13 14:42:43,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:43,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63020683] [2022-12-13 14:42:43,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:43,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:43,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:43,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63020683] [2022-12-13 14:42:43,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63020683] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:43,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:43,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:42:43,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136307096] [2022-12-13 14:42:43,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:43,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:42:43,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:43,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:42:43,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:42:43,530 INFO L87 Difference]: Start difference. First operand 6856 states and 9282 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:48,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:42:48,025 INFO L93 Difference]: Finished difference Result 13940 states and 19100 transitions. [2022-12-13 14:42:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:42:48,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-12-13 14:42:48,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:42:48,034 INFO L225 Difference]: With dead ends: 13940 [2022-12-13 14:42:48,034 INFO L226 Difference]: Without dead ends: 9715 [2022-12-13 14:42:48,036 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:42:48,036 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 380 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:42:48,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 526 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:42:48,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9715 states. [2022-12-13 14:42:52,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9715 to 9686. [2022-12-13 14:42:52,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9686 states, 9685 states have (on average 1.3751161590087764) internal successors, (13318), 9685 states have internal predecessors, (13318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9686 states to 9686 states and 13318 transitions. [2022-12-13 14:42:52,287 INFO L78 Accepts]: Start accepts. Automaton has 9686 states and 13318 transitions. Word has length 72 [2022-12-13 14:42:52,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:42:52,287 INFO L495 AbstractCegarLoop]: Abstraction has 9686 states and 13318 transitions. [2022-12-13 14:42:52,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:42:52,287 INFO L276 IsEmpty]: Start isEmpty. Operand 9686 states and 13318 transitions. [2022-12-13 14:42:52,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 14:42:52,293 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:42:52,293 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:42:52,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 14:42:52,293 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:42:52,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:52,294 INFO L85 PathProgramCache]: Analyzing trace with hash -786160929, now seen corresponding path program 1 times [2022-12-13 14:42:52,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:52,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94970967] [2022-12-13 14:42:52,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:52,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:42:52,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:52,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94970967] [2022-12-13 14:42:52,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94970967] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:52,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:42:52,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:42:52,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432715269] [2022-12-13 14:42:52,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:52,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:42:52,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:52,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:42:52,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:42:52,372 INFO L87 Difference]: Start difference. First operand 9686 states and 13318 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 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) [2022-12-13 14:43:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:43:10,529 INFO L93 Difference]: Finished difference Result 43788 states and 61665 transitions. [2022-12-13 14:43:10,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:43:10,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 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 [2022-12-13 14:43:10,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:43:10,565 INFO L225 Difference]: With dead ends: 43788 [2022-12-13 14:43:10,565 INFO L226 Difference]: Without dead ends: 35929 [2022-12-13 14:43:10,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:43:10,574 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 2043 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:43:10,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 1218 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:43:10,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35929 states. [2022-12-13 14:43:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35929 to 17543. [2022-12-13 14:43:19,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17543 states, 17542 states have (on average 1.3789761714741762) internal successors, (24190), 17542 states have internal predecessors, (24190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17543 states to 17543 states and 24190 transitions. [2022-12-13 14:43:19,456 INFO L78 Accepts]: Start accepts. Automaton has 17543 states and 24190 transitions. Word has length 86 [2022-12-13 14:43:19,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:43:19,456 INFO L495 AbstractCegarLoop]: Abstraction has 17543 states and 24190 transitions. [2022-12-13 14:43:19,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 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) [2022-12-13 14:43:19,456 INFO L276 IsEmpty]: Start isEmpty. Operand 17543 states and 24190 transitions. [2022-12-13 14:43:19,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 14:43:19,465 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:43:19,465 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:43:19,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 14:43:19,465 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:43:19,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:19,466 INFO L85 PathProgramCache]: Analyzing trace with hash 623918678, now seen corresponding path program 1 times [2022-12-13 14:43:19,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:19,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726124157] [2022-12-13 14:43:19,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:19,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:19,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:19,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:19,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726124157] [2022-12-13 14:43:19,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726124157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:19,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:19,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:43:19,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134543941] [2022-12-13 14:43:19,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:19,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:43:19,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:19,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:43:19,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:43:19,560 INFO L87 Difference]: Start difference. First operand 17543 states and 24190 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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) [2022-12-13 14:43:29,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:43:29,977 INFO L93 Difference]: Finished difference Result 28217 states and 38845 transitions. [2022-12-13 14:43:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:43:29,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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 [2022-12-13 14:43:29,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:43:29,994 INFO L225 Difference]: With dead ends: 28217 [2022-12-13 14:43:29,994 INFO L226 Difference]: Without dead ends: 18623 [2022-12-13 14:43:30,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:43:30,001 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 1013 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:43:30,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 1331 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:43:30,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18623 states. [2022-12-13 14:43:37,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18623 to 13367. [2022-12-13 14:43:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13367 states, 13366 states have (on average 1.3563519377525064) internal successors, (18129), 13366 states have internal predecessors, (18129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13367 states to 13367 states and 18129 transitions. [2022-12-13 14:43:37,307 INFO L78 Accepts]: Start accepts. Automaton has 13367 states and 18129 transitions. Word has length 87 [2022-12-13 14:43:37,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:43:37,307 INFO L495 AbstractCegarLoop]: Abstraction has 13367 states and 18129 transitions. [2022-12-13 14:43:37,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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) [2022-12-13 14:43:37,307 INFO L276 IsEmpty]: Start isEmpty. Operand 13367 states and 18129 transitions. [2022-12-13 14:43:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 14:43:37,315 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:43:37,315 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:43:37,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 14:43:37,315 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:43:37,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:37,315 INFO L85 PathProgramCache]: Analyzing trace with hash 803271302, now seen corresponding path program 1 times [2022-12-13 14:43:37,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:37,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132480879] [2022-12-13 14:43:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:37,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:37,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:43:37,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:37,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132480879] [2022-12-13 14:43:37,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132480879] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:37,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:43:37,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:43:37,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717043068] [2022-12-13 14:43:37,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:37,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:43:37,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:37,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:43:37,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:43:37,391 INFO L87 Difference]: Start difference. First operand 13367 states and 18129 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:51,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:43:51,386 INFO L93 Difference]: Finished difference Result 36039 states and 49333 transitions. [2022-12-13 14:43:51,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:43:51,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-12-13 14:43:51,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:43:51,408 INFO L225 Difference]: With dead ends: 36039 [2022-12-13 14:43:51,408 INFO L226 Difference]: Without dead ends: 24333 [2022-12-13 14:43:51,416 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:43:51,416 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 154 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:43:51,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 883 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:43:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24333 states. [2022-12-13 14:44:04,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24333 to 22915. [2022-12-13 14:44:04,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22915 states, 22914 states have (on average 1.3585144453172733) internal successors, (31129), 22914 states have internal predecessors, (31129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:04,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22915 states to 22915 states and 31129 transitions. [2022-12-13 14:44:04,722 INFO L78 Accepts]: Start accepts. Automaton has 22915 states and 31129 transitions. Word has length 88 [2022-12-13 14:44:04,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:04,723 INFO L495 AbstractCegarLoop]: Abstraction has 22915 states and 31129 transitions. [2022-12-13 14:44:04,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:04,723 INFO L276 IsEmpty]: Start isEmpty. Operand 22915 states and 31129 transitions. [2022-12-13 14:44:04,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 14:44:04,729 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:04,729 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:44:04,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 14:44:04,730 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:44:04,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:04,730 INFO L85 PathProgramCache]: Analyzing trace with hash 195252509, now seen corresponding path program 1 times [2022-12-13 14:44:04,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:04,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079738385] [2022-12-13 14:44:04,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:04,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:04,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:04,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:04,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079738385] [2022-12-13 14:44:04,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079738385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:04,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:04,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:44:04,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667191040] [2022-12-13 14:44:04,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:04,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:44:04,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:04,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:44:04,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:44:04,797 INFO L87 Difference]: Start difference. First operand 22915 states and 31129 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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) [2022-12-13 14:44:31,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:44:31,432 INFO L93 Difference]: Finished difference Result 64023 states and 87227 transitions. [2022-12-13 14:44:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:44:31,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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 [2022-12-13 14:44:31,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:44:31,480 INFO L225 Difference]: With dead ends: 64023 [2022-12-13 14:44:31,481 INFO L226 Difference]: Without dead ends: 42769 [2022-12-13 14:44:31,499 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:44:31,499 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 142 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:44:31,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 872 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:44:31,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42769 states. [2022-12-13 14:44:57,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42769 to 39903. [2022-12-13 14:44:57,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39903 states, 39902 states have (on average 1.3475264397774547) internal successors, (53769), 39902 states have internal predecessors, (53769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:57,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39903 states to 39903 states and 53769 transitions. [2022-12-13 14:44:57,682 INFO L78 Accepts]: Start accepts. Automaton has 39903 states and 53769 transitions. Word has length 89 [2022-12-13 14:44:57,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:57,682 INFO L495 AbstractCegarLoop]: Abstraction has 39903 states and 53769 transitions. [2022-12-13 14:44:57,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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) [2022-12-13 14:44:57,683 INFO L276 IsEmpty]: Start isEmpty. Operand 39903 states and 53769 transitions. [2022-12-13 14:44:57,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-13 14:44:57,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:57,688 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:44:57,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 14:44:57,689 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:44:57,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:57,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1615072029, now seen corresponding path program 1 times [2022-12-13 14:44:57,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:57,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653556398] [2022-12-13 14:44:57,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:57,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:57,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:57,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:57,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653556398] [2022-12-13 14:44:57,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653556398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:57,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:57,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:44:57,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573187501] [2022-12-13 14:44:57,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:57,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:44:57,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:57,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:44:57,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:44:57,731 INFO L87 Difference]: Start difference. First operand 39903 states and 53769 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2022-12-13 14:45:18,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:45:18,009 INFO L93 Difference]: Finished difference Result 55708 states and 75098 transitions. [2022-12-13 14:45:18,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:45:18,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 [2022-12-13 14:45:18,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:45:18,044 INFO L225 Difference]: With dead ends: 55708 [2022-12-13 14:45:18,044 INFO L226 Difference]: Without dead ends: 32513 [2022-12-13 14:45:18,057 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:45:18,057 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 241 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:45:18,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 917 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:45:18,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32513 states. [2022-12-13 14:45:39,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32513 to 32511. [2022-12-13 14:45:39,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32511 states, 32510 states have (on average 1.340479852353122) internal successors, (43579), 32510 states have internal predecessors, (43579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:45:39,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32511 states to 32511 states and 43579 transitions. [2022-12-13 14:45:39,211 INFO L78 Accepts]: Start accepts. Automaton has 32511 states and 43579 transitions. Word has length 90 [2022-12-13 14:45:39,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:45:39,211 INFO L495 AbstractCegarLoop]: Abstraction has 32511 states and 43579 transitions. [2022-12-13 14:45:39,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2022-12-13 14:45:39,212 INFO L276 IsEmpty]: Start isEmpty. Operand 32511 states and 43579 transitions. [2022-12-13 14:45:39,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-13 14:45:39,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:45:39,217 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:45:39,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 14:45:39,217 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:45:39,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:45:39,218 INFO L85 PathProgramCache]: Analyzing trace with hash -992280540, now seen corresponding path program 1 times [2022-12-13 14:45:39,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:45:39,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386615742] [2022-12-13 14:45:39,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:45:39,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:45:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:45:39,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:45:39,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:45:39,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386615742] [2022-12-13 14:45:39,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386615742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:45:39,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:45:39,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:45:39,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781255884] [2022-12-13 14:45:39,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:45:39,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:45:39,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:45:39,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:45:39,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:45:39,316 INFO L87 Difference]: Start difference. First operand 32511 states and 43579 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2022-12-13 14:46:17,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:46:17,637 INFO L93 Difference]: Finished difference Result 92107 states and 123429 transitions. [2022-12-13 14:46:17,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:46:17,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 [2022-12-13 14:46:17,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:46:17,715 INFO L225 Difference]: With dead ends: 92107 [2022-12-13 14:46:17,715 INFO L226 Difference]: Without dead ends: 61209 [2022-12-13 14:46:17,739 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:46:17,740 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 129 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:46:17,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 854 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:46:17,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61209 states. [2022-12-13 14:46:53,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61209 to 56775. [2022-12-13 14:46:53,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56775 states, 56774 states have (on average 1.322770986719273) internal successors, (75099), 56774 states have internal predecessors, (75099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:46:53,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56775 states to 56775 states and 75099 transitions. [2022-12-13 14:46:53,219 INFO L78 Accepts]: Start accepts. Automaton has 56775 states and 75099 transitions. Word has length 90 [2022-12-13 14:46:53,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:46:53,220 INFO L495 AbstractCegarLoop]: Abstraction has 56775 states and 75099 transitions. [2022-12-13 14:46:53,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2022-12-13 14:46:53,220 INFO L276 IsEmpty]: Start isEmpty. Operand 56775 states and 75099 transitions. [2022-12-13 14:46:53,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-13 14:46:53,225 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:46:53,225 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:46:53,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 14:46:53,225 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:46:53,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:46:53,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1918040975, now seen corresponding path program 1 times [2022-12-13 14:46:53,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:46:53,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321559508] [2022-12-13 14:46:53,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:46:53,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:46:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:53,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:46:53,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:46:53,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321559508] [2022-12-13 14:46:53,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321559508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:46:53,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:46:53,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:46:53,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255409125] [2022-12-13 14:46:53,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:46:53,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:46:53,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:46:53,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:46:53,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:46:53,268 INFO L87 Difference]: Start difference. First operand 56775 states and 75099 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:47:20,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:47:20,080 INFO L93 Difference]: Finished difference Result 69751 states and 92387 transitions. [2022-12-13 14:47:20,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:47:20,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-12-13 14:47:20,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:47:20,133 INFO L225 Difference]: With dead ends: 69751 [2022-12-13 14:47:20,133 INFO L226 Difference]: Without dead ends: 46418 [2022-12-13 14:47:20,151 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:47:20,151 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 198 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:47:20,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 885 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:47:20,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46418 states. [2022-12-13 14:47:46,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46418 to 46416. [2022-12-13 14:47:46,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46416 states, 46415 states have (on average 1.3234299256705806) internal successors, (61427), 46415 states have internal predecessors, (61427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:47:46,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46416 states to 46416 states and 61427 transitions. [2022-12-13 14:47:46,819 INFO L78 Accepts]: Start accepts. Automaton has 46416 states and 61427 transitions. Word has length 91 [2022-12-13 14:47:46,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:47:46,820 INFO L495 AbstractCegarLoop]: Abstraction has 46416 states and 61427 transitions. [2022-12-13 14:47:46,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:47:46,820 INFO L276 IsEmpty]: Start isEmpty. Operand 46416 states and 61427 transitions. [2022-12-13 14:47:46,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 14:47:46,824 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:47:46,824 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:47:46,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 14:47:46,825 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:47:46,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:47:46,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1248064469, now seen corresponding path program 1 times [2022-12-13 14:47:46,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:47:46,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276981128] [2022-12-13 14:47:46,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:47:46,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:47:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:47:46,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:47:46,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:47:46,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276981128] [2022-12-13 14:47:46,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276981128] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:47:46,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:47:46,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:47:46,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621479512] [2022-12-13 14:47:46,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:47:46,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:47:46,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:47:46,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:47:46,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:47:46,888 INFO L87 Difference]: Start difference. First operand 46416 states and 61427 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:48:38,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:48:38,744 INFO L93 Difference]: Finished difference Result 132468 states and 175077 transitions. [2022-12-13 14:48:38,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:48:38,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-12-13 14:48:38,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:48:38,859 INFO L225 Difference]: With dead ends: 132468 [2022-12-13 14:48:38,859 INFO L226 Difference]: Without dead ends: 87602 [2022-12-13 14:48:38,893 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:48:38,893 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 107 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:48:38,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 834 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:48:38,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87602 states. [2022-12-13 14:49:27,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87602 to 81968. [2022-12-13 14:49:27,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81968 states, 81967 states have (on average 1.310808008100821) internal successors, (107443), 81967 states have internal predecessors, (107443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:49:27,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81968 states to 81968 states and 107443 transitions. [2022-12-13 14:49:27,990 INFO L78 Accepts]: Start accepts. Automaton has 81968 states and 107443 transitions. Word has length 92 [2022-12-13 14:49:27,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:49:27,991 INFO L495 AbstractCegarLoop]: Abstraction has 81968 states and 107443 transitions. [2022-12-13 14:49:27,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:49:27,991 INFO L276 IsEmpty]: Start isEmpty. Operand 81968 states and 107443 transitions. [2022-12-13 14:49:27,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 14:49:27,995 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:49:27,995 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:49:27,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 14:49:27,996 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:49:27,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash -290315974, now seen corresponding path program 1 times [2022-12-13 14:49:27,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:27,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108445692] [2022-12-13 14:49:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:49:28,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:49:28,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108445692] [2022-12-13 14:49:28,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108445692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:49:28,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:49:28,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:49:28,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390871067] [2022-12-13 14:49:28,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:49:28,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:49:28,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:49:28,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:49:28,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:49:28,121 INFO L87 Difference]: Start difference. First operand 81968 states and 107443 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:51:18,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:51:18,564 INFO L93 Difference]: Finished difference Result 175116 states and 226726 transitions. [2022-12-13 14:51:18,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:51:18,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-13 14:51:18,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:51:18,821 INFO L225 Difference]: With dead ends: 175116 [2022-12-13 14:51:18,821 INFO L226 Difference]: Without dead ends: 175114 [2022-12-13 14:51:18,858 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:51:18,859 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 453 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:51:18,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 2132 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:51:18,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175114 states. [2022-12-13 14:52:16,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175114 to 88208. [2022-12-13 14:52:16,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88208 states, 88207 states have (on average 1.2888206151439228) internal successors, (113683), 88207 states have internal predecessors, (113683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:52:17,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88208 states to 88208 states and 113683 transitions. [2022-12-13 14:52:17,000 INFO L78 Accepts]: Start accepts. Automaton has 88208 states and 113683 transitions. Word has length 94 [2022-12-13 14:52:17,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:52:17,001 INFO L495 AbstractCegarLoop]: Abstraction has 88208 states and 113683 transitions. [2022-12-13 14:52:17,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:52:17,001 INFO L276 IsEmpty]: Start isEmpty. Operand 88208 states and 113683 transitions. [2022-12-13 14:52:17,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-13 14:52:17,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:52:17,005 INFO L195 NwaCegarLoop]: 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] [2022-12-13 14:52:17,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 14:52:17,006 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:52:17,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:52:17,006 INFO L85 PathProgramCache]: Analyzing trace with hash 95243205, now seen corresponding path program 1 times [2022-12-13 14:52:17,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:52:17,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611778240] [2022-12-13 14:52:17,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:52:17,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:52:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:52:17,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:52:17,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:52:17,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611778240] [2022-12-13 14:52:17,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611778240] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:52:17,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:52:17,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:52:17,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992300438] [2022-12-13 14:52:17,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:52:17,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:52:17,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:52:17,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:52:17,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:52:17,046 INFO L87 Difference]: Start difference. First operand 88208 states and 113683 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:53:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:53:48,119 INFO L93 Difference]: Finished difference Result 222380 states and 285181 transitions. [2022-12-13 14:53:48,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:53:48,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-13 14:53:48,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:53:48,320 INFO L225 Difference]: With dead ends: 222380 [2022-12-13 14:53:48,320 INFO L226 Difference]: Without dead ends: 135722 [2022-12-13 14:53:48,382 INFO L412 NwaCegarLoop]: 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 [2022-12-13 14:53:48,382 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 325 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:53:48,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 610 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:53:48,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135722 states.