./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+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa --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 d0e47ba9123028218b420ce8d5a00a95c55595f981ba1193a1a3a9086d3ecf65 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:34:04,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:34:04,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:34:04,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:34:04,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:34:04,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:34:04,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:34:04,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:34:04,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:34:04,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:34:04,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:34:04,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:34:04,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:34:04,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:34:04,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:34:04,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:34:04,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:34:04,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:34:04,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:34:04,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:34:04,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:34:04,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:34:04,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:34:04,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:34:04,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:34:04,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:34:04,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:34:04,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:34:04,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:34:04,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:34:04,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:34:04,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:34:04,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:34:04,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:34:04,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:34:04,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:34:04,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:34:04,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:34:04,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:34:04,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:34:04,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:34:04,694 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:34:04,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:34:04,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:34:04,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:34:04,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:34:04,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:34:04,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:34:04,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:34:04,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:34:04,720 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:34:04,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:34:04,721 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:34:04,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:34:04,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:34:04,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:34:04,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:34:04,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:34:04,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:34:04,722 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:34:04,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:34:04,722 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:34:04,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:34:04,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:34:04,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:34:04,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:34:04,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:34:04,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:34:04,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:34:04,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:34:04,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:34:04,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:34:04,724 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:34:04,724 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:34:04,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:34:04,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:34:04,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0e47ba9123028218b420ce8d5a00a95c55595f981ba1193a1a3a9086d3ecf65 [2021-12-07 00:34:04,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:34:04,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:34:04,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:34:04,922 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:34:04,923 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:34:04,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-12-07 00:34:04,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/data/d912e7d01/8ddfbc63d24745d29d6c4b35002bc296/FLAG3a198572d [2021-12-07 00:34:05,663 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:34:05,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-12-07 00:34:05,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/data/d912e7d01/8ddfbc63d24745d29d6c4b35002bc296/FLAG3a198572d [2021-12-07 00:34:06,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/data/d912e7d01/8ddfbc63d24745d29d6c4b35002bc296 [2021-12-07 00:34:06,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:34:06,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:34:06,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:34:06,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:34:06,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:34:06,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:34:06" (1/1) ... [2021-12-07 00:34:06,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e3732d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:06, skipping insertion in model container [2021-12-07 00:34:06,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:34:06" (1/1) ... [2021-12-07 00:34:06,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:34:06,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:34:06,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32607,32620] [2021-12-07 00:34:06,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39665,39678] [2021-12-07 00:34:06,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66766,66779] [2021-12-07 00:34:06,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75829,75842] [2021-12-07 00:34:06,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82520,82533] [2021-12-07 00:34:06,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94424,94437] [2021-12-07 00:34:06,749 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103377,103390] [2021-12-07 00:34:06,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111402,111415] [2021-12-07 00:34:06,836 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[149914,149927] [2021-12-07 00:34:06,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153444,153457] [2021-12-07 00:34:06,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162451,162464] [2021-12-07 00:34:06,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169104,169117] [2021-12-07 00:34:06,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[194798,194811] [2021-12-07 00:34:06,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[226694,226707] [2021-12-07 00:34:07,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[256902,256915] [2021-12-07 00:34:07,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[287214,287227] [2021-12-07 00:34:07,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[320546,320559] [2021-12-07 00:34:07,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:34:07,331 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:34:07,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32607,32620] [2021-12-07 00:34:07,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39665,39678] [2021-12-07 00:34:07,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66766,66779] [2021-12-07 00:34:07,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75829,75842] [2021-12-07 00:34:07,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82520,82533] [2021-12-07 00:34:07,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94424,94437] [2021-12-07 00:34:07,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103377,103390] [2021-12-07 00:34:07,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111402,111415] [2021-12-07 00:34:07,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[149914,149927] [2021-12-07 00:34:07,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153444,153457] [2021-12-07 00:34:07,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162451,162464] [2021-12-07 00:34:07,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169104,169117] [2021-12-07 00:34:07,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[194798,194811] [2021-12-07 00:34:07,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[226694,226707] [2021-12-07 00:34:07,782 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[256902,256915] [2021-12-07 00:34:07,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[287214,287227] [2021-12-07 00:34:07,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[320546,320559] [2021-12-07 00:34:08,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:34:08,037 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:34:08,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08 WrapperNode [2021-12-07 00:34:08,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:34:08,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:34:08,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:34:08,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:34:08,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (1/1) ... [2021-12-07 00:34:08,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (1/1) ... [2021-12-07 00:34:08,272 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17990 [2021-12-07 00:34:08,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:34:08,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:34:08,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:34:08,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:34:08,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (1/1) ... [2021-12-07 00:34:08,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (1/1) ... [2021-12-07 00:34:08,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (1/1) ... [2021-12-07 00:34:08,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (1/1) ... [2021-12-07 00:34:08,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (1/1) ... [2021-12-07 00:34:08,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (1/1) ... [2021-12-07 00:34:08,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (1/1) ... [2021-12-07 00:34:08,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:34:08,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:34:08,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:34:08,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:34:08,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (1/1) ... [2021-12-07 00:34:08,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:34:08,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:34:08,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:34:08,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eadfa6ac-9826-41a8-a057-ceb2ad5c3ae1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:34:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:34:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:34:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:34:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:34:08,955 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:34:08,956 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:34:12,989 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:34:13,026 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:34:13,026 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 00:34:13,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:34:13 BoogieIcfgContainer [2021-12-07 00:34:13,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:34:13,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:34:13,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:34:13,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:34:13,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:34:06" (1/3) ... [2021-12-07 00:34:13,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59368108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:34:13, skipping insertion in model container [2021-12-07 00:34:13,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:34:08" (2/3) ... [2021-12-07 00:34:13,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59368108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:34:13, skipping insertion in model container [2021-12-07 00:34:13,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:34:13" (3/3) ... [2021-12-07 00:34:13,036 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2021-12-07 00:34:13,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:34:13,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-12-07 00:34:13,086 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:34:13,090 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:34:13,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-12-07 00:34:13,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 3732 states, 3714 states have (on average 1.7808292945611202) internal successors, (6614), 3731 states have internal predecessors, (6614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:13,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-07 00:34:13,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:13,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:13,176 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:13,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:13,180 INFO L85 PathProgramCache]: Analyzing trace with hash -100733711, now seen corresponding path program 1 times [2021-12-07 00:34:13,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:13,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412552372] [2021-12-07 00:34:13,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:13,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:13,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:13,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412552372] [2021-12-07 00:34:13,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412552372] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:13,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:13,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:34:13,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202786970] [2021-12-07 00:34:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:13,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:34:13,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:13,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:34:13,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:34:13,581 INFO L87 Difference]: Start difference. First operand has 3732 states, 3714 states have (on average 1.7808292945611202) internal successors, (6614), 3731 states have internal predecessors, (6614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 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) [2021-12-07 00:34:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:16,240 INFO L93 Difference]: Finished difference Result 7023 states and 12201 transitions. [2021-12-07 00:34:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:34:16,242 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 [2021-12-07 00:34:16,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:16,273 INFO L225 Difference]: With dead ends: 7023 [2021-12-07 00:34:16,274 INFO L226 Difference]: Without dead ends: 4502 [2021-12-07 00:34:16,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:34:16,284 INFO L933 BasicCegarLoop]: 2976 mSDtfsCounter, 20410 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 3522 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20410 SdHoareTripleChecker+Valid, 4268 SdHoareTripleChecker+Invalid, 3733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 3522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:16,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20410 Valid, 4268 Invalid, 3733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-07 00:34:16,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2021-12-07 00:34:16,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4477. [2021-12-07 00:34:16,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4460 states have (on average 1.3017937219730942) internal successors, (5806), 4476 states have internal predecessors, (5806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:16,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5806 transitions. [2021-12-07 00:34:16,450 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5806 transitions. Word has length 65 [2021-12-07 00:34:16,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:16,451 INFO L470 AbstractCegarLoop]: Abstraction has 4477 states and 5806 transitions. [2021-12-07 00:34:16,451 INFO L471 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) [2021-12-07 00:34:16,451 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5806 transitions. [2021-12-07 00:34:16,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-07 00:34:16,459 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:16,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:16,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:34:16,460 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:16,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:16,460 INFO L85 PathProgramCache]: Analyzing trace with hash 100373679, now seen corresponding path program 1 times [2021-12-07 00:34:16,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:16,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583718654] [2021-12-07 00:34:16,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:16,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:16,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:16,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583718654] [2021-12-07 00:34:16,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583718654] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:16,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:16,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:34:16,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226561353] [2021-12-07 00:34:16,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:16,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:34:16,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:16,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:34:16,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:34:16,597 INFO L87 Difference]: Start difference. First operand 4477 states and 5806 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:18,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:18,392 INFO L93 Difference]: Finished difference Result 8429 states and 10953 transitions. [2021-12-07 00:34:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:34:18,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-12-07 00:34:18,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:18,419 INFO L225 Difference]: With dead ends: 8429 [2021-12-07 00:34:18,419 INFO L226 Difference]: Without dead ends: 5662 [2021-12-07 00:34:18,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:34:18,425 INFO L933 BasicCegarLoop]: 1914 mSDtfsCounter, 13225 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13225 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:18,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13225 Valid, 2583 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-07 00:34:18,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5662 states. [2021-12-07 00:34:18,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5662 to 5632. [2021-12-07 00:34:18,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5632 states, 5615 states have (on average 1.3073909171861087) internal successors, (7341), 5631 states have internal predecessors, (7341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:18,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5632 states to 5632 states and 7341 transitions. [2021-12-07 00:34:18,584 INFO L78 Accepts]: Start accepts. Automaton has 5632 states and 7341 transitions. Word has length 66 [2021-12-07 00:34:18,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:18,584 INFO L470 AbstractCegarLoop]: Abstraction has 5632 states and 7341 transitions. [2021-12-07 00:34:18,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:18,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5632 states and 7341 transitions. [2021-12-07 00:34:18,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-07 00:34:18,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:18,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:18,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:34:18,592 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:18,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:18,592 INFO L85 PathProgramCache]: Analyzing trace with hash 2043501231, now seen corresponding path program 1 times [2021-12-07 00:34:18,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:18,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947253556] [2021-12-07 00:34:18,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:18,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:18,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:18,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947253556] [2021-12-07 00:34:18,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947253556] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:18,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:18,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:34:18,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502075559] [2021-12-07 00:34:18,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:18,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:34:18,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:18,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:34:18,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:34:18,709 INFO L87 Difference]: Start difference. First operand 5632 states and 7341 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:20,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:20,025 INFO L93 Difference]: Finished difference Result 11309 states and 14761 transitions. [2021-12-07 00:34:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:34:20,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-12-07 00:34:20,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:20,051 INFO L225 Difference]: With dead ends: 11309 [2021-12-07 00:34:20,051 INFO L226 Difference]: Without dead ends: 7079 [2021-12-07 00:34:20,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:34:20,057 INFO L933 BasicCegarLoop]: 1612 mSDtfsCounter, 11515 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11515 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:20,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11515 Valid, 2246 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-07 00:34:20,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2021-12-07 00:34:20,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 7059. [2021-12-07 00:34:20,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7059 states, 7042 states have (on average 1.3092871343368362) internal successors, (9220), 7058 states have internal predecessors, (9220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:20,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7059 states to 7059 states and 9220 transitions. [2021-12-07 00:34:20,260 INFO L78 Accepts]: Start accepts. Automaton has 7059 states and 9220 transitions. Word has length 66 [2021-12-07 00:34:20,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:20,261 INFO L470 AbstractCegarLoop]: Abstraction has 7059 states and 9220 transitions. [2021-12-07 00:34:20,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:20,261 INFO L276 IsEmpty]: Start isEmpty. Operand 7059 states and 9220 transitions. [2021-12-07 00:34:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-07 00:34:20,267 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:20,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:20,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:34:20,267 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:20,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:20,268 INFO L85 PathProgramCache]: Analyzing trace with hash 280890183, now seen corresponding path program 1 times [2021-12-07 00:34:20,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:20,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062311955] [2021-12-07 00:34:20,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:20,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:20,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:20,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:20,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062311955] [2021-12-07 00:34:20,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062311955] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:20,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:20,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:34:20,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372788901] [2021-12-07 00:34:20,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:20,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:34:20,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:20,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:34:20,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:34:20,351 INFO L87 Difference]: Start difference. First operand 7059 states and 9220 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) [2021-12-07 00:34:21,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:21,388 INFO L93 Difference]: Finished difference Result 13777 states and 18169 transitions. [2021-12-07 00:34:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:34:21,388 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 [2021-12-07 00:34:21,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:21,421 INFO L225 Difference]: With dead ends: 13777 [2021-12-07 00:34:21,421 INFO L226 Difference]: Without dead ends: 9203 [2021-12-07 00:34:21,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:34:21,428 INFO L933 BasicCegarLoop]: 1470 mSDtfsCounter, 9693 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9693 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:21,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9693 Valid, 2010 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:34:21,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9203 states. [2021-12-07 00:34:21,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9203 to 9163. [2021-12-07 00:34:21,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9163 states, 9146 states have (on average 1.323092062103652) internal successors, (12101), 9162 states have internal predecessors, (12101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:21,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9163 states to 9163 states and 12101 transitions. [2021-12-07 00:34:21,668 INFO L78 Accepts]: Start accepts. Automaton has 9163 states and 12101 transitions. Word has length 67 [2021-12-07 00:34:21,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:21,668 INFO L470 AbstractCegarLoop]: Abstraction has 9163 states and 12101 transitions. [2021-12-07 00:34:21,668 INFO L471 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) [2021-12-07 00:34:21,668 INFO L276 IsEmpty]: Start isEmpty. Operand 9163 states and 12101 transitions. [2021-12-07 00:34:21,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-07 00:34:21,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:21,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:21,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:34:21,673 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:21,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:21,674 INFO L85 PathProgramCache]: Analyzing trace with hash 533009189, now seen corresponding path program 1 times [2021-12-07 00:34:21,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:21,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789315341] [2021-12-07 00:34:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:21,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:21,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:21,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789315341] [2021-12-07 00:34:21,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789315341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:21,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:21,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:34:21,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405622060] [2021-12-07 00:34:21,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:21,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:34:21,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:21,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:34:21,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:34:21,842 INFO L87 Difference]: Start difference. First operand 9163 states and 12101 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:24,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:24,177 INFO L93 Difference]: Finished difference Result 14406 states and 19714 transitions. [2021-12-07 00:34:24,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:34:24,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-07 00:34:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:24,198 INFO L225 Difference]: With dead ends: 14406 [2021-12-07 00:34:24,198 INFO L226 Difference]: Without dead ends: 12872 [2021-12-07 00:34:24,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:34:24,203 INFO L933 BasicCegarLoop]: 1533 mSDtfsCounter, 11943 mSDsluCounter, 5103 mSDsCounter, 0 mSdLazyCounter, 5317 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11943 SdHoareTripleChecker+Valid, 6636 SdHoareTripleChecker+Invalid, 5408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 5317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:24,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11943 Valid, 6636 Invalid, 5408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 5317 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-07 00:34:24,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12872 states. [2021-12-07 00:34:24,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12872 to 9003. [2021-12-07 00:34:24,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9003 states, 8986 states have (on average 1.3225016692632985) internal successors, (11884), 9002 states have internal predecessors, (11884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:24,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9003 states to 9003 states and 11884 transitions. [2021-12-07 00:34:24,496 INFO L78 Accepts]: Start accepts. Automaton has 9003 states and 11884 transitions. Word has length 68 [2021-12-07 00:34:24,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:24,496 INFO L470 AbstractCegarLoop]: Abstraction has 9003 states and 11884 transitions. [2021-12-07 00:34:24,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:24,497 INFO L276 IsEmpty]: Start isEmpty. Operand 9003 states and 11884 transitions. [2021-12-07 00:34:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-07 00:34:24,501 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:24,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:24,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:34:24,502 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:24,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:24,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1802238869, now seen corresponding path program 1 times [2021-12-07 00:34:24,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:24,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221975239] [2021-12-07 00:34:24,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:24,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:24,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:24,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221975239] [2021-12-07 00:34:24,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221975239] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:24,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:24,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:34:24,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717158022] [2021-12-07 00:34:24,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:24,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:34:24,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:24,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:34:24,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:34:24,630 INFO L87 Difference]: Start difference. First operand 9003 states and 11884 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:28,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:28,268 INFO L93 Difference]: Finished difference Result 17830 states and 24364 transitions. [2021-12-07 00:34:28,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:34:28,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-07 00:34:28,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:28,290 INFO L225 Difference]: With dead ends: 17830 [2021-12-07 00:34:28,291 INFO L226 Difference]: Without dead ends: 16418 [2021-12-07 00:34:28,295 INFO L932 BasicCegarLoop]: 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 [2021-12-07 00:34:28,295 INFO L933 BasicCegarLoop]: 1578 mSDtfsCounter, 12254 mSDsluCounter, 7063 mSDsCounter, 0 mSdLazyCounter, 8503 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12254 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 8824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 8503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:28,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12254 Valid, 8641 Invalid, 8824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 8503 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-07 00:34:28,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16418 states. [2021-12-07 00:34:28,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16418 to 8941. [2021-12-07 00:34:28,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8941 states, 8924 states have (on average 1.3221649484536082) internal successors, (11799), 8940 states have internal predecessors, (11799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:28,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8941 states to 8941 states and 11799 transitions. [2021-12-07 00:34:28,668 INFO L78 Accepts]: Start accepts. Automaton has 8941 states and 11799 transitions. Word has length 68 [2021-12-07 00:34:28,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:28,668 INFO L470 AbstractCegarLoop]: Abstraction has 8941 states and 11799 transitions. [2021-12-07 00:34:28,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:28,668 INFO L276 IsEmpty]: Start isEmpty. Operand 8941 states and 11799 transitions. [2021-12-07 00:34:28,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-07 00:34:28,672 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:28,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:28,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:34:28,673 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:28,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:28,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2141707383, now seen corresponding path program 1 times [2021-12-07 00:34:28,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:28,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970786063] [2021-12-07 00:34:28,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:28,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:28,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:28,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970786063] [2021-12-07 00:34:28,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970786063] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:28,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:28,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:34:28,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64010948] [2021-12-07 00:34:28,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:28,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:34:28,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:28,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:34:28,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:34:28,945 INFO L87 Difference]: Start difference. First operand 8941 states and 11799 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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) [2021-12-07 00:34:30,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:30,966 INFO L93 Difference]: Finished difference Result 16548 states and 23097 transitions. [2021-12-07 00:34:30,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 00:34:30,967 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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 [2021-12-07 00:34:30,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:30,986 INFO L225 Difference]: With dead ends: 16548 [2021-12-07 00:34:30,986 INFO L226 Difference]: Without dead ends: 16544 [2021-12-07 00:34:30,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2021-12-07 00:34:30,990 INFO L933 BasicCegarLoop]: 2740 mSDtfsCounter, 13576 mSDsluCounter, 9991 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13576 SdHoareTripleChecker+Valid, 12731 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:30,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13576 Valid, 12731 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-07 00:34:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16544 states. [2021-12-07 00:34:31,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16544 to 8937. [2021-12-07 00:34:31,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8937 states, 8921 states have (on average 1.3221611926914023) internal successors, (11795), 8936 states have internal predecessors, (11795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:31,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 11795 transitions. [2021-12-07 00:34:31,530 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 11795 transitions. Word has length 69 [2021-12-07 00:34:31,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:31,531 INFO L470 AbstractCegarLoop]: Abstraction has 8937 states and 11795 transitions. [2021-12-07 00:34:31,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 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) [2021-12-07 00:34:31,531 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 11795 transitions. [2021-12-07 00:34:31,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-07 00:34:31,537 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:31,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:31,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 00:34:31,537 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:31,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:31,537 INFO L85 PathProgramCache]: Analyzing trace with hash -50233035, now seen corresponding path program 1 times [2021-12-07 00:34:31,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:31,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492288518] [2021-12-07 00:34:31,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:31,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:31,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:31,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492288518] [2021-12-07 00:34:31,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492288518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:31,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:31,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:34:31,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479861068] [2021-12-07 00:34:31,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:31,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:34:31,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:31,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:34:31,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:34:31,665 INFO L87 Difference]: Start difference. First operand 8937 states and 11795 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) [2021-12-07 00:34:34,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:34,070 INFO L93 Difference]: Finished difference Result 11902 states and 16021 transitions. [2021-12-07 00:34:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:34:34,071 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 [2021-12-07 00:34:34,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:34,080 INFO L225 Difference]: With dead ends: 11902 [2021-12-07 00:34:34,080 INFO L226 Difference]: Without dead ends: 11896 [2021-12-07 00:34:34,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2021-12-07 00:34:34,083 INFO L933 BasicCegarLoop]: 1476 mSDtfsCounter, 9237 mSDsluCounter, 5444 mSDsCounter, 0 mSdLazyCounter, 5579 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9237 SdHoareTripleChecker+Valid, 6920 SdHoareTripleChecker+Invalid, 5751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 5579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:34,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9237 Valid, 6920 Invalid, 5751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 5579 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-07 00:34:34,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11896 states. [2021-12-07 00:34:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11896 to 8937. [2021-12-07 00:34:34,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8937 states, 8921 states have (on average 1.3220490976347943) internal successors, (11794), 8936 states have internal predecessors, (11794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:34,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 11794 transitions. [2021-12-07 00:34:34,577 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 11794 transitions. Word has length 69 [2021-12-07 00:34:34,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:34,577 INFO L470 AbstractCegarLoop]: Abstraction has 8937 states and 11794 transitions. [2021-12-07 00:34:34,577 INFO L471 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) [2021-12-07 00:34:34,577 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 11794 transitions. [2021-12-07 00:34:34,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-07 00:34:34,582 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:34,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:34,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 00:34:34,582 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:34,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:34,583 INFO L85 PathProgramCache]: Analyzing trace with hash 487125926, now seen corresponding path program 1 times [2021-12-07 00:34:34,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:34,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403571920] [2021-12-07 00:34:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:34,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:34,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:34,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:34,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403571920] [2021-12-07 00:34:34,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403571920] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:34,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:34,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:34:34,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874261815] [2021-12-07 00:34:34,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:34,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:34:34,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:34,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:34:34,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:34:34,691 INFO L87 Difference]: Start difference. First operand 8937 states and 11794 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) [2021-12-07 00:34:37,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:37,194 INFO L93 Difference]: Finished difference Result 11304 states and 14876 transitions. [2021-12-07 00:34:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 00:34:37,194 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 [2021-12-07 00:34:37,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:37,202 INFO L225 Difference]: With dead ends: 11304 [2021-12-07 00:34:37,202 INFO L226 Difference]: Without dead ends: 11295 [2021-12-07 00:34:37,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-12-07 00:34:37,204 INFO L933 BasicCegarLoop]: 1437 mSDtfsCounter, 13776 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 5384 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13776 SdHoareTripleChecker+Valid, 6087 SdHoareTripleChecker+Invalid, 5733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 5384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:37,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13776 Valid, 6087 Invalid, 5733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 5384 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-07 00:34:37,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11295 states. [2021-12-07 00:34:37,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11295 to 8937. [2021-12-07 00:34:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8937 states, 8921 states have (on average 1.3219370025781862) internal successors, (11793), 8936 states have internal predecessors, (11793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:37,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 11793 transitions. [2021-12-07 00:34:37,712 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 11793 transitions. Word has length 69 [2021-12-07 00:34:37,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:37,713 INFO L470 AbstractCegarLoop]: Abstraction has 8937 states and 11793 transitions. [2021-12-07 00:34:37,713 INFO L471 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) [2021-12-07 00:34:37,713 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 11793 transitions. [2021-12-07 00:34:37,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-07 00:34:37,719 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:37,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:37,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 00:34:37,720 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:37,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:37,720 INFO L85 PathProgramCache]: Analyzing trace with hash -465119641, now seen corresponding path program 1 times [2021-12-07 00:34:37,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:37,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620618106] [2021-12-07 00:34:37,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:37,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:37,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:37,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:37,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620618106] [2021-12-07 00:34:37,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620618106] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:37,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:37,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:34:37,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536220650] [2021-12-07 00:34:37,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:37,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:34:37,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:37,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:34:37,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:34:37,937 INFO L87 Difference]: Start difference. First operand 8937 states and 11793 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 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) [2021-12-07 00:34:42,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:42,103 INFO L93 Difference]: Finished difference Result 24526 states and 34369 transitions. [2021-12-07 00:34:42,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:34:42,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 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 [2021-12-07 00:34:42,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:42,123 INFO L225 Difference]: With dead ends: 24526 [2021-12-07 00:34:42,123 INFO L226 Difference]: Without dead ends: 23111 [2021-12-07 00:34:42,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2021-12-07 00:34:42,129 INFO L933 BasicCegarLoop]: 2510 mSDtfsCounter, 23430 mSDsluCounter, 9044 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23430 SdHoareTripleChecker+Valid, 11554 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:42,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23430 Valid, 11554 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-07 00:34:42,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23111 states. [2021-12-07 00:34:42,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23111 to 8868. [2021-12-07 00:34:42,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8868 states, 8853 states have (on average 1.3218118152038858) internal successors, (11702), 8867 states have internal predecessors, (11702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8868 states to 8868 states and 11702 transitions. [2021-12-07 00:34:42,858 INFO L78 Accepts]: Start accepts. Automaton has 8868 states and 11702 transitions. Word has length 69 [2021-12-07 00:34:42,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:42,858 INFO L470 AbstractCegarLoop]: Abstraction has 8868 states and 11702 transitions. [2021-12-07 00:34:42,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 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) [2021-12-07 00:34:42,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8868 states and 11702 transitions. [2021-12-07 00:34:42,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-07 00:34:42,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:42,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:42,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 00:34:42,864 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:42,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:42,864 INFO L85 PathProgramCache]: Analyzing trace with hash 215127807, now seen corresponding path program 1 times [2021-12-07 00:34:42,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:42,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820195221] [2021-12-07 00:34:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:42,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:43,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:43,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:43,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820195221] [2021-12-07 00:34:43,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820195221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:43,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:43,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:34:43,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831114171] [2021-12-07 00:34:43,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:43,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:34:43,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:43,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:34:43,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:34:43,090 INFO L87 Difference]: Start difference. First operand 8868 states and 11702 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) [2021-12-07 00:34:48,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:48,402 INFO L93 Difference]: Finished difference Result 25460 states and 35982 transitions. [2021-12-07 00:34:48,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-07 00:34:48,403 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 [2021-12-07 00:34:48,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:48,426 INFO L225 Difference]: With dead ends: 25460 [2021-12-07 00:34:48,426 INFO L226 Difference]: Without dead ends: 23881 [2021-12-07 00:34:48,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2021-12-07 00:34:48,432 INFO L933 BasicCegarLoop]: 3045 mSDtfsCounter, 18993 mSDsluCounter, 13272 mSDsCounter, 0 mSdLazyCounter, 3587 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18993 SdHoareTripleChecker+Valid, 16317 SdHoareTripleChecker+Invalid, 3986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 3587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:48,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18993 Valid, 16317 Invalid, 3986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 3587 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-07 00:34:48,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23881 states. [2021-12-07 00:34:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23881 to 8635. [2021-12-07 00:34:49,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8635 states, 8621 states have (on average 1.3195684955341607) internal successors, (11376), 8634 states have internal predecessors, (11376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:49,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8635 states to 8635 states and 11376 transitions. [2021-12-07 00:34:49,304 INFO L78 Accepts]: Start accepts. Automaton has 8635 states and 11376 transitions. Word has length 70 [2021-12-07 00:34:49,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:49,304 INFO L470 AbstractCegarLoop]: Abstraction has 8635 states and 11376 transitions. [2021-12-07 00:34:49,304 INFO L471 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) [2021-12-07 00:34:49,304 INFO L276 IsEmpty]: Start isEmpty. Operand 8635 states and 11376 transitions. [2021-12-07 00:34:49,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-07 00:34:49,309 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:49,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:49,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 00:34:49,309 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:49,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:49,310 INFO L85 PathProgramCache]: Analyzing trace with hash 502084112, now seen corresponding path program 1 times [2021-12-07 00:34:49,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:49,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935621476] [2021-12-07 00:34:49,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:49,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:49,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:49,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935621476] [2021-12-07 00:34:49,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935621476] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:49,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:49,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:34:49,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703758129] [2021-12-07 00:34:49,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:49,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:34:49,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:49,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:34:49,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:34:49,543 INFO L87 Difference]: Start difference. First operand 8635 states and 11376 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) [2021-12-07 00:34:54,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:54,455 INFO L93 Difference]: Finished difference Result 19804 states and 27582 transitions. [2021-12-07 00:34:54,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 00:34:54,456 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 [2021-12-07 00:34:54,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:54,473 INFO L225 Difference]: With dead ends: 19804 [2021-12-07 00:34:54,473 INFO L226 Difference]: Without dead ends: 19792 [2021-12-07 00:34:54,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2021-12-07 00:34:54,477 INFO L933 BasicCegarLoop]: 2630 mSDtfsCounter, 14686 mSDsluCounter, 14361 mSDsCounter, 0 mSdLazyCounter, 3764 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14686 SdHoareTripleChecker+Valid, 16991 SdHoareTripleChecker+Invalid, 4114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 3764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:54,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14686 Valid, 16991 Invalid, 4114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 3764 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-07 00:34:54,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19792 states. [2021-12-07 00:34:55,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19792 to 8628. [2021-12-07 00:34:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8614 states have (on average 1.3197120965869515) internal successors, (11368), 8627 states have internal predecessors, (11368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 11368 transitions. [2021-12-07 00:34:55,333 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 11368 transitions. Word has length 70 [2021-12-07 00:34:55,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:55,333 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 11368 transitions. [2021-12-07 00:34:55,333 INFO L471 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) [2021-12-07 00:34:55,334 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 11368 transitions. [2021-12-07 00:34:55,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-07 00:34:55,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:55,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:55,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 00:34:55,339 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:55,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:55,339 INFO L85 PathProgramCache]: Analyzing trace with hash -683220265, now seen corresponding path program 1 times [2021-12-07 00:34:55,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:55,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527733000] [2021-12-07 00:34:55,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:55,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:55,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:55,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:55,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527733000] [2021-12-07 00:34:55,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527733000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:55,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:55,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:34:55,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807580269] [2021-12-07 00:34:55,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:55,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:34:55,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:55,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:34:55,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:34:55,386 INFO L87 Difference]: Start difference. First operand 8628 states and 11368 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) [2021-12-07 00:34:56,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:34:56,331 INFO L93 Difference]: Finished difference Result 12563 states and 16874 transitions. [2021-12-07 00:34:56,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:34:56,332 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 [2021-12-07 00:34:56,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:34:56,338 INFO L225 Difference]: With dead ends: 12563 [2021-12-07 00:34:56,338 INFO L226 Difference]: Without dead ends: 7645 [2021-12-07 00:34:56,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:34:56,343 INFO L933 BasicCegarLoop]: 1950 mSDtfsCounter, 1923 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:34:56,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1923 Valid, 2623 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:34:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2021-12-07 00:34:57,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 7626. [2021-12-07 00:34:57,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 7616 states have (on average 1.337841386554622) internal successors, (10189), 7625 states have internal predecessors, (10189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:34:57,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10189 transitions. [2021-12-07 00:34:57,283 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10189 transitions. Word has length 70 [2021-12-07 00:34:57,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:34:57,284 INFO L470 AbstractCegarLoop]: Abstraction has 7626 states and 10189 transitions. [2021-12-07 00:34:57,284 INFO L471 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) [2021-12-07 00:34:57,284 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10189 transitions. [2021-12-07 00:34:57,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:34:57,288 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:34:57,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:34:57,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 00:34:57,288 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:34:57,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:34:57,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1404122129, now seen corresponding path program 1 times [2021-12-07 00:34:57,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:34:57,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152390866] [2021-12-07 00:34:57,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:34:57,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:34:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:34:57,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:34:57,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:34:57,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152390866] [2021-12-07 00:34:57,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152390866] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:34:57,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:34:57,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:34:57,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805165572] [2021-12-07 00:34:57,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:34:57,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:34:57,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:34:57,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:34:57,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:34:57,377 INFO L87 Difference]: Start difference. First operand 7626 states and 10189 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:00,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:00,751 INFO L93 Difference]: Finished difference Result 15142 states and 21091 transitions. [2021-12-07 00:35:00,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:35:00,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:35:00,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:00,762 INFO L225 Difference]: With dead ends: 15142 [2021-12-07 00:35:00,762 INFO L226 Difference]: Without dead ends: 13134 [2021-12-07 00:35:00,766 INFO L932 BasicCegarLoop]: 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 [2021-12-07 00:35:00,766 INFO L933 BasicCegarLoop]: 1143 mSDtfsCounter, 8111 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 4237 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8111 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 4429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 4237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:00,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8111 Valid, 4831 Invalid, 4429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 4237 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-07 00:35:00,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13134 states. [2021-12-07 00:35:01,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13134 to 7626. [2021-12-07 00:35:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 7616 states have (on average 1.3377100840336134) internal successors, (10188), 7625 states have internal predecessors, (10188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:01,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10188 transitions. [2021-12-07 00:35:01,677 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10188 transitions. Word has length 71 [2021-12-07 00:35:01,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:01,677 INFO L470 AbstractCegarLoop]: Abstraction has 7626 states and 10188 transitions. [2021-12-07 00:35:01,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:01,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10188 transitions. [2021-12-07 00:35:01,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:35:01,681 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:01,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:01,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-07 00:35:01,681 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:35:01,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:01,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1017361466, now seen corresponding path program 1 times [2021-12-07 00:35:01,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:01,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844147225] [2021-12-07 00:35:01,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:01,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:35:01,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:01,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844147225] [2021-12-07 00:35:01,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844147225] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:01,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:01,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:35:01,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069681429] [2021-12-07 00:35:01,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:01,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:35:01,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:01,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:35:01,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:35:01,810 INFO L87 Difference]: Start difference. First operand 7626 states and 10188 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:06,236 INFO L93 Difference]: Finished difference Result 15675 states and 21633 transitions. [2021-12-07 00:35:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 00:35:06,237 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:35:06,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:06,248 INFO L225 Difference]: With dead ends: 15675 [2021-12-07 00:35:06,249 INFO L226 Difference]: Without dead ends: 13667 [2021-12-07 00:35:06,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2021-12-07 00:35:06,253 INFO L933 BasicCegarLoop]: 1179 mSDtfsCounter, 8157 mSDsluCounter, 6622 mSDsCounter, 0 mSdLazyCounter, 7118 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8157 SdHoareTripleChecker+Valid, 7801 SdHoareTripleChecker+Invalid, 7331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 7118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:06,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8157 Valid, 7801 Invalid, 7331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 7118 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-07 00:35:06,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13667 states. [2021-12-07 00:35:07,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13667 to 7630. [2021-12-07 00:35:07,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7630 states, 7620 states have (on average 1.3375328083989502) internal successors, (10192), 7629 states have internal predecessors, (10192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7630 states to 7630 states and 10192 transitions. [2021-12-07 00:35:07,210 INFO L78 Accepts]: Start accepts. Automaton has 7630 states and 10192 transitions. Word has length 71 [2021-12-07 00:35:07,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:07,211 INFO L470 AbstractCegarLoop]: Abstraction has 7630 states and 10192 transitions. [2021-12-07 00:35:07,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:07,211 INFO L276 IsEmpty]: Start isEmpty. Operand 7630 states and 10192 transitions. [2021-12-07 00:35:07,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:35:07,215 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:07,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:07,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-07 00:35:07,215 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:35:07,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:07,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1222862511, now seen corresponding path program 1 times [2021-12-07 00:35:07,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:07,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573302777] [2021-12-07 00:35:07,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:07,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:07,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:35:07,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:07,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573302777] [2021-12-07 00:35:07,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573302777] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:07,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:07,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:35:07,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420081790] [2021-12-07 00:35:07,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:07,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:35:07,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:07,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:35:07,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:35:07,313 INFO L87 Difference]: Start difference. First operand 7630 states and 10192 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:12,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:12,822 INFO L93 Difference]: Finished difference Result 18792 states and 26288 transitions. [2021-12-07 00:35:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:35:12,823 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:35:12,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:12,837 INFO L225 Difference]: With dead ends: 18792 [2021-12-07 00:35:12,837 INFO L226 Difference]: Without dead ends: 16715 [2021-12-07 00:35:12,841 INFO L932 BasicCegarLoop]: 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 [2021-12-07 00:35:12,842 INFO L933 BasicCegarLoop]: 1225 mSDtfsCounter, 9287 mSDsluCounter, 5512 mSDsCounter, 0 mSdLazyCounter, 6453 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9287 SdHoareTripleChecker+Valid, 6737 SdHoareTripleChecker+Invalid, 6675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 6453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:12,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9287 Valid, 6737 Invalid, 6675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 6453 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-07 00:35:12,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16715 states. [2021-12-07 00:35:13,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16715 to 7626. [2021-12-07 00:35:13,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 7616 states have (on average 1.337578781512605) internal successors, (10187), 7625 states have internal predecessors, (10187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:13,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10187 transitions. [2021-12-07 00:35:13,824 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10187 transitions. Word has length 71 [2021-12-07 00:35:13,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:13,824 INFO L470 AbstractCegarLoop]: Abstraction has 7626 states and 10187 transitions. [2021-12-07 00:35:13,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:13,825 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10187 transitions. [2021-12-07 00:35:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:35:13,829 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:13,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:13,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 00:35:13,829 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:35:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 325375151, now seen corresponding path program 1 times [2021-12-07 00:35:13,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:13,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497660327] [2021-12-07 00:35:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:13,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:13,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:35:13,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:13,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497660327] [2021-12-07 00:35:13,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497660327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:13,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:13,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:35:13,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580973289] [2021-12-07 00:35:13,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:13,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:35:13,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:13,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:35:13,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:35:13,927 INFO L87 Difference]: Start difference. First operand 7626 states and 10187 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:17,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:17,235 INFO L93 Difference]: Finished difference Result 14599 states and 20459 transitions. [2021-12-07 00:35:17,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:35:17,236 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:35:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:17,245 INFO L225 Difference]: With dead ends: 14599 [2021-12-07 00:35:17,245 INFO L226 Difference]: Without dead ends: 12178 [2021-12-07 00:35:17,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:35:17,248 INFO L933 BasicCegarLoop]: 1154 mSDtfsCounter, 9068 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9068 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 3552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:17,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9068 Valid, 4384 Invalid, 3552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:35:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2021-12-07 00:35:18,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 7626. [2021-12-07 00:35:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 7616 states have (on average 1.3374474789915967) internal successors, (10186), 7625 states have internal predecessors, (10186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:18,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10186 transitions. [2021-12-07 00:35:18,217 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10186 transitions. Word has length 71 [2021-12-07 00:35:18,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:18,218 INFO L470 AbstractCegarLoop]: Abstraction has 7626 states and 10186 transitions. [2021-12-07 00:35:18,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:18,218 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10186 transitions. [2021-12-07 00:35:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 00:35:18,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:18,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:18,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-07 00:35:18,222 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:35:18,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:18,222 INFO L85 PathProgramCache]: Analyzing trace with hash 912295609, now seen corresponding path program 1 times [2021-12-07 00:35:18,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:18,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901065001] [2021-12-07 00:35:18,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:18,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:18,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:35:18,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:18,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901065001] [2021-12-07 00:35:18,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901065001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:18,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:18,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:35:18,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760489725] [2021-12-07 00:35:18,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:18,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:35:18,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:18,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:35:18,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:18,267 INFO L87 Difference]: Start difference. First operand 7626 states and 10186 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:19,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:19,492 INFO L93 Difference]: Finished difference Result 12203 states and 16633 transitions. [2021-12-07 00:35:19,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:35:19,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-07 00:35:19,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:19,498 INFO L225 Difference]: With dead ends: 12203 [2021-12-07 00:35:19,498 INFO L226 Difference]: Without dead ends: 7439 [2021-12-07 00:35:19,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:19,502 INFO L933 BasicCegarLoop]: 1545 mSDtfsCounter, 1522 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:19,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1522 Valid, 2011 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:35:19,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7439 states. [2021-12-07 00:35:20,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7439 to 7431. [2021-12-07 00:35:20,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7431 states, 7424 states have (on average 1.3615301724137931) internal successors, (10108), 7430 states have internal predecessors, (10108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7431 states to 7431 states and 10108 transitions. [2021-12-07 00:35:20,631 INFO L78 Accepts]: Start accepts. Automaton has 7431 states and 10108 transitions. Word has length 71 [2021-12-07 00:35:20,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:20,631 INFO L470 AbstractCegarLoop]: Abstraction has 7431 states and 10108 transitions. [2021-12-07 00:35:20,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7431 states and 10108 transitions. [2021-12-07 00:35:20,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-07 00:35:20,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:20,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:20,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 00:35:20,635 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:35:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:20,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2097366389, now seen corresponding path program 1 times [2021-12-07 00:35:20,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:20,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828135371] [2021-12-07 00:35:20,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:20,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:20,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:35:20,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:20,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828135371] [2021-12-07 00:35:20,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828135371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:20,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:20,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:35:20,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846479464] [2021-12-07 00:35:20,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:20,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:35:20,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:20,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:35:20,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:20,683 INFO L87 Difference]: Start difference. First operand 7431 states and 10108 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) [2021-12-07 00:35:22,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:22,662 INFO L93 Difference]: Finished difference Result 15591 states and 21752 transitions. [2021-12-07 00:35:22,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:35:22,663 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 [2021-12-07 00:35:22,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:22,673 INFO L225 Difference]: With dead ends: 15591 [2021-12-07 00:35:22,673 INFO L226 Difference]: Without dead ends: 11588 [2021-12-07 00:35:22,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:22,678 INFO L933 BasicCegarLoop]: 1716 mSDtfsCounter, 1021 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:22,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1021 Valid, 3016 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:35:22,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11588 states. [2021-12-07 00:35:24,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11588 to 11580. [2021-12-07 00:35:24,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11580 states, 11573 states have (on average 1.3706039920504622) internal successors, (15862), 11579 states have internal predecessors, (15862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:24,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11580 states to 11580 states and 15862 transitions. [2021-12-07 00:35:24,626 INFO L78 Accepts]: Start accepts. Automaton has 11580 states and 15862 transitions. Word has length 72 [2021-12-07 00:35:24,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:24,626 INFO L470 AbstractCegarLoop]: Abstraction has 11580 states and 15862 transitions. [2021-12-07 00:35:24,626 INFO L471 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) [2021-12-07 00:35:24,626 INFO L276 IsEmpty]: Start isEmpty. Operand 11580 states and 15862 transitions. [2021-12-07 00:35:24,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-07 00:35:24,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:24,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:24,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-07 00:35:24,630 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:35:24,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:24,630 INFO L85 PathProgramCache]: Analyzing trace with hash -804939217, now seen corresponding path program 1 times [2021-12-07 00:35:24,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:24,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201963577] [2021-12-07 00:35:24,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:24,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:24,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:35:24,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:24,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201963577] [2021-12-07 00:35:24,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201963577] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:24,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:24,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:35:24,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232660611] [2021-12-07 00:35:24,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:24,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:35:24,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:24,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:35:24,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:24,678 INFO L87 Difference]: Start difference. First operand 11580 states and 15862 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) [2021-12-07 00:35:27,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:27,347 INFO L93 Difference]: Finished difference Result 20106 states and 28655 transitions. [2021-12-07 00:35:27,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:35:27,347 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 [2021-12-07 00:35:27,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:27,359 INFO L225 Difference]: With dead ends: 20106 [2021-12-07 00:35:27,359 INFO L226 Difference]: Without dead ends: 13738 [2021-12-07 00:35:27,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:27,365 INFO L933 BasicCegarLoop]: 1622 mSDtfsCounter, 933 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:27,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 2354 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:35:27,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13738 states. [2021-12-07 00:35:29,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13738 to 11086. [2021-12-07 00:35:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11086 states, 11079 states have (on average 1.396154887625237) internal successors, (15468), 11085 states have internal predecessors, (15468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:29,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11086 states to 11086 states and 15468 transitions. [2021-12-07 00:35:29,523 INFO L78 Accepts]: Start accepts. Automaton has 11086 states and 15468 transitions. Word has length 72 [2021-12-07 00:35:29,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:29,523 INFO L470 AbstractCegarLoop]: Abstraction has 11086 states and 15468 transitions. [2021-12-07 00:35:29,523 INFO L471 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) [2021-12-07 00:35:29,523 INFO L276 IsEmpty]: Start isEmpty. Operand 11086 states and 15468 transitions. [2021-12-07 00:35:29,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-07 00:35:29,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:29,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:29,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 00:35:29,526 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:35:29,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:29,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1735047217, now seen corresponding path program 1 times [2021-12-07 00:35:29,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:29,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549387981] [2021-12-07 00:35:29,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:29,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:29,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:35:29,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:29,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549387981] [2021-12-07 00:35:29,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549387981] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:29,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:29,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:35:29,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724360192] [2021-12-07 00:35:29,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:29,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:35:29,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:29,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:35:29,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:29,574 INFO L87 Difference]: Start difference. First operand 11086 states and 15468 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) [2021-12-07 00:35:33,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:33,369 INFO L93 Difference]: Finished difference Result 25777 states and 36676 transitions. [2021-12-07 00:35:33,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:35:33,369 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 [2021-12-07 00:35:33,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:33,384 INFO L225 Difference]: With dead ends: 25777 [2021-12-07 00:35:33,384 INFO L226 Difference]: Without dead ends: 17652 [2021-12-07 00:35:33,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:33,393 INFO L933 BasicCegarLoop]: 1788 mSDtfsCounter, 866 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:33,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [866 Valid, 3011 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:35:33,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17652 states. [2021-12-07 00:35:37,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17652 to 17644. [2021-12-07 00:35:37,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17644 states, 17637 states have (on average 1.3947383341838182) internal successors, (24599), 17643 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:37,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17644 states to 17644 states and 24599 transitions. [2021-12-07 00:35:37,284 INFO L78 Accepts]: Start accepts. Automaton has 17644 states and 24599 transitions. Word has length 72 [2021-12-07 00:35:37,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:37,284 INFO L470 AbstractCegarLoop]: Abstraction has 17644 states and 24599 transitions. [2021-12-07 00:35:37,284 INFO L471 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) [2021-12-07 00:35:37,284 INFO L276 IsEmpty]: Start isEmpty. Operand 17644 states and 24599 transitions. [2021-12-07 00:35:37,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-07 00:35:37,288 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:37,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:37,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-07 00:35:37,288 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:35:37,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:37,288 INFO L85 PathProgramCache]: Analyzing trace with hash -746860976, now seen corresponding path program 1 times [2021-12-07 00:35:37,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:37,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228606586] [2021-12-07 00:35:37,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:37,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:37,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:35:37,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:37,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228606586] [2021-12-07 00:35:37,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228606586] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:37,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:37,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:35:37,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038573320] [2021-12-07 00:35:37,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:37,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:35:37,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:37,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:35:37,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:37,330 INFO L87 Difference]: Start difference. First operand 17644 states and 24599 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:42,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:42,015 INFO L93 Difference]: Finished difference Result 35075 states and 49603 transitions. [2021-12-07 00:35:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:35:42,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-12-07 00:35:42,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:42,035 INFO L225 Difference]: With dead ends: 35075 [2021-12-07 00:35:42,036 INFO L226 Difference]: Without dead ends: 19281 [2021-12-07 00:35:42,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:42,048 INFO L933 BasicCegarLoop]: 1515 mSDtfsCounter, 1255 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:42,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 2113 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:35:42,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19281 states. [2021-12-07 00:35:45,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19281 to 15437. [2021-12-07 00:35:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15437 states, 15430 states have (on average 1.4129617627997408) internal successors, (21802), 15436 states have internal predecessors, (21802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:45,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 21802 transitions. [2021-12-07 00:35:45,734 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 21802 transitions. Word has length 73 [2021-12-07 00:35:45,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:45,734 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 21802 transitions. [2021-12-07 00:35:45,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:45,734 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 21802 transitions. [2021-12-07 00:35:45,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-07 00:35:45,736 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:45,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:45,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-07 00:35:45,736 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:35:45,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:45,737 INFO L85 PathProgramCache]: Analyzing trace with hash 202006294, now seen corresponding path program 1 times [2021-12-07 00:35:45,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:45,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888940577] [2021-12-07 00:35:45,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:45,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:35:45,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:45,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888940577] [2021-12-07 00:35:45,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888940577] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:45,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:45,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:35:45,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791911986] [2021-12-07 00:35:45,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:45,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:35:45,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:45,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:35:45,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:35:45,826 INFO L87 Difference]: Start difference. First operand 15437 states and 21802 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:51,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:51,822 INFO L93 Difference]: Finished difference Result 20127 states and 28268 transitions. [2021-12-07 00:35:51,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:35:51,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-12-07 00:35:51,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:51,839 INFO L225 Difference]: With dead ends: 20127 [2021-12-07 00:35:51,839 INFO L226 Difference]: Without dead ends: 19917 [2021-12-07 00:35:51,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:35:51,843 INFO L933 BasicCegarLoop]: 876 mSDtfsCounter, 7472 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7472 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 2950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:51,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7472 Valid, 3706 Invalid, 2950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 00:35:51,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19917 states. [2021-12-07 00:35:55,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19917 to 15432. [2021-12-07 00:35:55,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15432 states, 15425 states have (on average 1.412836304700162) internal successors, (21793), 15431 states have internal predecessors, (21793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:55,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15432 states to 15432 states and 21793 transitions. [2021-12-07 00:35:55,429 INFO L78 Accepts]: Start accepts. Automaton has 15432 states and 21793 transitions. Word has length 73 [2021-12-07 00:35:55,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:35:55,429 INFO L470 AbstractCegarLoop]: Abstraction has 15432 states and 21793 transitions. [2021-12-07 00:35:55,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:55,429 INFO L276 IsEmpty]: Start isEmpty. Operand 15432 states and 21793 transitions. [2021-12-07 00:35:55,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-07 00:35:55,431 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:35:55,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:35:55,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-07 00:35:55,431 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:35:55,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:35:55,432 INFO L85 PathProgramCache]: Analyzing trace with hash 33022288, now seen corresponding path program 1 times [2021-12-07 00:35:55,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:35:55,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491650442] [2021-12-07 00:35:55,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:35:55,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:35:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:35:55,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:35:55,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:35:55,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491650442] [2021-12-07 00:35:55,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491650442] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:35:55,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:35:55,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:35:55,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987119046] [2021-12-07 00:35:55,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:35:55,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:35:55,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:35:55,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:35:55,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:55,472 INFO L87 Difference]: Start difference. First operand 15432 states and 21793 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:35:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:35:59,760 INFO L93 Difference]: Finished difference Result 31667 states and 45320 transitions. [2021-12-07 00:35:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:35:59,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-12-07 00:35:59,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:35:59,776 INFO L225 Difference]: With dead ends: 31667 [2021-12-07 00:35:59,776 INFO L226 Difference]: Without dead ends: 17490 [2021-12-07 00:35:59,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:35:59,785 INFO L933 BasicCegarLoop]: 1368 mSDtfsCounter, 1309 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:35:59,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 1873 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:35:59,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17490 states. [2021-12-07 00:36:03,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17490 to 14011. [2021-12-07 00:36:03,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14011 states, 14004 states have (on average 1.429020279920023) internal successors, (20012), 14010 states have internal predecessors, (20012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:03,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14011 states to 14011 states and 20012 transitions. [2021-12-07 00:36:03,200 INFO L78 Accepts]: Start accepts. Automaton has 14011 states and 20012 transitions. Word has length 73 [2021-12-07 00:36:03,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:36:03,200 INFO L470 AbstractCegarLoop]: Abstraction has 14011 states and 20012 transitions. [2021-12-07 00:36:03,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:03,200 INFO L276 IsEmpty]: Start isEmpty. Operand 14011 states and 20012 transitions. [2021-12-07 00:36:03,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 00:36:03,202 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:36:03,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:36:03,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-07 00:36:03,202 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:36:03,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:36:03,202 INFO L85 PathProgramCache]: Analyzing trace with hash -361494476, now seen corresponding path program 1 times [2021-12-07 00:36:03,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:36:03,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883006966] [2021-12-07 00:36:03,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:36:03,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:36:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:36:03,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:36:03,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883006966] [2021-12-07 00:36:03,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883006966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:36:03,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:36:03,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 00:36:03,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797742844] [2021-12-07 00:36:03,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:36:03,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:36:03,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:36:03,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:36:03,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:36:03,318 INFO L87 Difference]: Start difference. First operand 14011 states and 20012 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:36:14,983 INFO L93 Difference]: Finished difference Result 33638 states and 47932 transitions. [2021-12-07 00:36:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-07 00:36:14,984 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 00:36:14,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:36:15,017 INFO L225 Difference]: With dead ends: 33638 [2021-12-07 00:36:15,017 INFO L226 Difference]: Without dead ends: 33348 [2021-12-07 00:36:15,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2021-12-07 00:36:15,023 INFO L933 BasicCegarLoop]: 1171 mSDtfsCounter, 7487 mSDsluCounter, 5341 mSDsCounter, 0 mSdLazyCounter, 5251 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7487 SdHoareTripleChecker+Valid, 6512 SdHoareTripleChecker+Invalid, 5518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 5251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:36:15,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7487 Valid, 6512 Invalid, 5518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 5251 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-07 00:36:15,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33348 states. [2021-12-07 00:36:18,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33348 to 14011. [2021-12-07 00:36:18,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14011 states, 14004 states have (on average 1.4289488717509282) internal successors, (20011), 14010 states have internal predecessors, (20011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14011 states to 14011 states and 20011 transitions. [2021-12-07 00:36:18,662 INFO L78 Accepts]: Start accepts. Automaton has 14011 states and 20011 transitions. Word has length 74 [2021-12-07 00:36:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:36:18,662 INFO L470 AbstractCegarLoop]: Abstraction has 14011 states and 20011 transitions. [2021-12-07 00:36:18,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:18,662 INFO L276 IsEmpty]: Start isEmpty. Operand 14011 states and 20011 transitions. [2021-12-07 00:36:18,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 00:36:18,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:36:18,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:36:18,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-07 00:36:18,664 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:36:18,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:36:18,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1074090996, now seen corresponding path program 1 times [2021-12-07 00:36:18,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:36:18,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683669676] [2021-12-07 00:36:18,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:36:18,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:36:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:36:18,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:36:18,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683669676] [2021-12-07 00:36:18,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683669676] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:36:18,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:36:18,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:36:18,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026688951] [2021-12-07 00:36:18,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:36:18,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:36:18,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:36:18,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:36:18,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:36:18,750 INFO L87 Difference]: Start difference. First operand 14011 states and 20011 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:24,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:36:24,718 INFO L93 Difference]: Finished difference Result 18333 states and 26030 transitions. [2021-12-07 00:36:24,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:36:24,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 00:36:24,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:36:24,734 INFO L225 Difference]: With dead ends: 18333 [2021-12-07 00:36:24,734 INFO L226 Difference]: Without dead ends: 18122 [2021-12-07 00:36:24,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:36:24,737 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 7104 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 2660 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7104 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:36:24,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7104 Valid, 3574 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 00:36:24,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18122 states. [2021-12-07 00:36:28,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18122 to 14011. [2021-12-07 00:36:28,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14011 states, 14004 states have (on average 1.4288774635818338) internal successors, (20010), 14010 states have internal predecessors, (20010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:28,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14011 states to 14011 states and 20010 transitions. [2021-12-07 00:36:28,302 INFO L78 Accepts]: Start accepts. Automaton has 14011 states and 20010 transitions. Word has length 74 [2021-12-07 00:36:28,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:36:28,302 INFO L470 AbstractCegarLoop]: Abstraction has 14011 states and 20010 transitions. [2021-12-07 00:36:28,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:28,303 INFO L276 IsEmpty]: Start isEmpty. Operand 14011 states and 20010 transitions. [2021-12-07 00:36:28,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 00:36:28,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:36:28,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:36:28,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-07 00:36:28,304 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:36:28,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:36:28,305 INFO L85 PathProgramCache]: Analyzing trace with hash -281417774, now seen corresponding path program 1 times [2021-12-07 00:36:28,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:36:28,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985965928] [2021-12-07 00:36:28,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:36:28,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:36:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:28,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:36:28,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:36:28,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985965928] [2021-12-07 00:36:28,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985965928] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:36:28,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:36:28,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:36:28,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351519702] [2021-12-07 00:36:28,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:36:28,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:36:28,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:36:28,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:36:28,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:36:28,389 INFO L87 Difference]: Start difference. First operand 14011 states and 20010 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:34,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:36:34,431 INFO L93 Difference]: Finished difference Result 18441 states and 26142 transitions. [2021-12-07 00:36:34,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:36:34,431 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 00:36:34,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:36:34,447 INFO L225 Difference]: With dead ends: 18441 [2021-12-07 00:36:34,447 INFO L226 Difference]: Without dead ends: 18208 [2021-12-07 00:36:34,450 INFO L932 BasicCegarLoop]: 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 [2021-12-07 00:36:34,450 INFO L933 BasicCegarLoop]: 910 mSDtfsCounter, 6797 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 2914 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6797 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:36:34,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6797 Valid, 3779 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2914 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-07 00:36:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18208 states. [2021-12-07 00:36:38,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18208 to 14011. [2021-12-07 00:36:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14011 states, 14004 states have (on average 1.4288060554127393) internal successors, (20009), 14010 states have internal predecessors, (20009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14011 states to 14011 states and 20009 transitions. [2021-12-07 00:36:38,042 INFO L78 Accepts]: Start accepts. Automaton has 14011 states and 20009 transitions. Word has length 74 [2021-12-07 00:36:38,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:36:38,042 INFO L470 AbstractCegarLoop]: Abstraction has 14011 states and 20009 transitions. [2021-12-07 00:36:38,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 14011 states and 20009 transitions. [2021-12-07 00:36:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 00:36:38,044 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:36:38,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:36:38,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-07 00:36:38,044 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:36:38,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:36:38,044 INFO L85 PathProgramCache]: Analyzing trace with hash -612402544, now seen corresponding path program 1 times [2021-12-07 00:36:38,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:36:38,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765620979] [2021-12-07 00:36:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:36:38,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:36:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:36:38,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:36:38,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:36:38,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765620979] [2021-12-07 00:36:38,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765620979] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:36:38,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:36:38,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:36:38,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270784645] [2021-12-07 00:36:38,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:36:38,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:36:38,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:36:38,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:36:38,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:36:38,163 INFO L87 Difference]: Start difference. First operand 14011 states and 20009 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:36:55,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:36:55,970 INFO L93 Difference]: Finished difference Result 52209 states and 75125 transitions. [2021-12-07 00:36:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-07 00:36:55,971 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 00:36:55,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:36:56,035 INFO L225 Difference]: With dead ends: 52209 [2021-12-07 00:36:56,035 INFO L226 Difference]: Without dead ends: 51976 [2021-12-07 00:36:56,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=367, Invalid=1039, Unknown=0, NotChecked=0, Total=1406 [2021-12-07 00:36:56,047 INFO L933 BasicCegarLoop]: 1012 mSDtfsCounter, 12288 mSDsluCounter, 4064 mSDsCounter, 0 mSdLazyCounter, 4169 mSolverCounterSat, 1044 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12288 SdHoareTripleChecker+Valid, 5076 SdHoareTripleChecker+Invalid, 5213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 4169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:36:56,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12288 Valid, 5076 Invalid, 5213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1044 Valid, 4169 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-07 00:36:56,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51976 states. [2021-12-07 00:37:00,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51976 to 14016. [2021-12-07 00:37:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14016 states, 14009 states have (on average 1.42865300878007) internal successors, (20014), 14015 states have internal predecessors, (20014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14016 states to 14016 states and 20014 transitions. [2021-12-07 00:37:00,151 INFO L78 Accepts]: Start accepts. Automaton has 14016 states and 20014 transitions. Word has length 74 [2021-12-07 00:37:00,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:37:00,151 INFO L470 AbstractCegarLoop]: Abstraction has 14016 states and 20014 transitions. [2021-12-07 00:37:00,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 14016 states and 20014 transitions. [2021-12-07 00:37:00,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 00:37:00,153 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:37:00,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:37:00,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-07 00:37:00,153 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:37:00,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:37:00,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1442340775, now seen corresponding path program 1 times [2021-12-07 00:37:00,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:37:00,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794273248] [2021-12-07 00:37:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:37:00,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:37:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:00,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:37:00,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:37:00,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794273248] [2021-12-07 00:37:00,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794273248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:37:00,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:37:00,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:37:00,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131669462] [2021-12-07 00:37:00,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:37:00,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:37:00,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:37:00,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:37:00,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:37:00,237 INFO L87 Difference]: Start difference. First operand 14016 states and 20014 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:06,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:37:06,703 INFO L93 Difference]: Finished difference Result 18338 states and 26033 transitions. [2021-12-07 00:37:06,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:37:06,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 00:37:06,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:37:06,721 INFO L225 Difference]: With dead ends: 18338 [2021-12-07 00:37:06,721 INFO L226 Difference]: Without dead ends: 18127 [2021-12-07 00:37:06,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:37:06,724 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 6970 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6970 SdHoareTripleChecker+Valid, 3689 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:37:06,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6970 Valid, 3689 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2704 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 00:37:06,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18127 states. [2021-12-07 00:37:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18127 to 14016. [2021-12-07 00:37:10,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14016 states, 14009 states have (on average 1.4285816260975088) internal successors, (20013), 14015 states have internal predecessors, (20013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:10,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14016 states to 14016 states and 20013 transitions. [2021-12-07 00:37:10,644 INFO L78 Accepts]: Start accepts. Automaton has 14016 states and 20013 transitions. Word has length 74 [2021-12-07 00:37:10,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:37:10,644 INFO L470 AbstractCegarLoop]: Abstraction has 14016 states and 20013 transitions. [2021-12-07 00:37:10,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:10,644 INFO L276 IsEmpty]: Start isEmpty. Operand 14016 states and 20013 transitions. [2021-12-07 00:37:10,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 00:37:10,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:37:10,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:37:10,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-07 00:37:10,646 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:37:10,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:37:10,646 INFO L85 PathProgramCache]: Analyzing trace with hash 426754260, now seen corresponding path program 1 times [2021-12-07 00:37:10,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:37:10,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358552094] [2021-12-07 00:37:10,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:37:10,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:37:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:37:10,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:37:10,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358552094] [2021-12-07 00:37:10,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358552094] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:37:10,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:37:10,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:37:10,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766688824] [2021-12-07 00:37:10,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:37:10,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:37:10,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:37:10,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:37:10,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:37:10,772 INFO L87 Difference]: Start difference. First operand 14016 states and 20013 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:27,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:37:27,212 INFO L93 Difference]: Finished difference Result 42786 states and 60892 transitions. [2021-12-07 00:37:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-07 00:37:27,212 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-07 00:37:27,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:37:27,262 INFO L225 Difference]: With dead ends: 42786 [2021-12-07 00:37:27,262 INFO L226 Difference]: Without dead ends: 42575 [2021-12-07 00:37:27,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=367, Invalid=1039, Unknown=0, NotChecked=0, Total=1406 [2021-12-07 00:37:27,272 INFO L933 BasicCegarLoop]: 920 mSDtfsCounter, 12797 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 2912 mSolverCounterSat, 994 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12797 SdHoareTripleChecker+Valid, 3775 SdHoareTripleChecker+Invalid, 3906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 994 IncrementalHoareTripleChecker+Valid, 2912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:37:27,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12797 Valid, 3775 Invalid, 3906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [994 Valid, 2912 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-07 00:37:27,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42575 states. [2021-12-07 00:37:31,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42575 to 14021. [2021-12-07 00:37:31,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14021 states, 14014 states have (on average 1.4284287141429999) internal successors, (20018), 14020 states have internal predecessors, (20018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:31,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14021 states to 14021 states and 20018 transitions. [2021-12-07 00:37:31,564 INFO L78 Accepts]: Start accepts. Automaton has 14021 states and 20018 transitions. Word has length 74 [2021-12-07 00:37:31,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:37:31,564 INFO L470 AbstractCegarLoop]: Abstraction has 14021 states and 20018 transitions. [2021-12-07 00:37:31,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 14021 states and 20018 transitions. [2021-12-07 00:37:31,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-07 00:37:31,566 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:37:31,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:37:31,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-07 00:37:31,566 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:37:31,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:37:31,566 INFO L85 PathProgramCache]: Analyzing trace with hash -125555062, now seen corresponding path program 1 times [2021-12-07 00:37:31,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:37:31,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56669195] [2021-12-07 00:37:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:37:31,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:37:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:31,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:37:31,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:37:31,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56669195] [2021-12-07 00:37:31,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56669195] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:37:31,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:37:31,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:37:31,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432597346] [2021-12-07 00:37:31,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:37:31,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:37:31,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:37:31,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:37:31,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:37:31,611 INFO L87 Difference]: Start difference. First operand 14021 states and 20018 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:37,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:37:37,766 INFO L93 Difference]: Finished difference Result 32687 states and 47351 transitions. [2021-12-07 00:37:37,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:37:37,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-12-07 00:37:37,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:37:37,785 INFO L225 Difference]: With dead ends: 32687 [2021-12-07 00:37:37,786 INFO L226 Difference]: Without dead ends: 20381 [2021-12-07 00:37:37,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:37:37,793 INFO L933 BasicCegarLoop]: 1381 mSDtfsCounter, 862 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:37:37,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 1929 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:37:37,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20381 states. [2021-12-07 00:37:42,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20381 to 16387. [2021-12-07 00:37:42,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16387 states, 16380 states have (on average 1.4222222222222223) internal successors, (23296), 16386 states have internal predecessors, (23296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:42,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16387 states to 16387 states and 23296 transitions. [2021-12-07 00:37:42,795 INFO L78 Accepts]: Start accepts. Automaton has 16387 states and 23296 transitions. Word has length 75 [2021-12-07 00:37:42,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:37:42,796 INFO L470 AbstractCegarLoop]: Abstraction has 16387 states and 23296 transitions. [2021-12-07 00:37:42,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:42,796 INFO L276 IsEmpty]: Start isEmpty. Operand 16387 states and 23296 transitions. [2021-12-07 00:37:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-07 00:37:42,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:37:42,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:37:42,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-07 00:37:42,797 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:37:42,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:37:42,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1865826260, now seen corresponding path program 1 times [2021-12-07 00:37:42,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:37:42,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265281506] [2021-12-07 00:37:42,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:37:42,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:37:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:42,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:37:42,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:37:42,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265281506] [2021-12-07 00:37:42,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265281506] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:37:42,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:37:42,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:37:42,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587733257] [2021-12-07 00:37:42,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:37:42,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:37:42,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:37:42,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:37:42,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:37:42,872 INFO L87 Difference]: Start difference. First operand 16387 states and 23296 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:50,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:37:50,728 INFO L93 Difference]: Finished difference Result 20996 states and 29648 transitions. [2021-12-07 00:37:50,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:37:50,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-12-07 00:37:50,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:37:50,749 INFO L225 Difference]: With dead ends: 20996 [2021-12-07 00:37:50,749 INFO L226 Difference]: Without dead ends: 20924 [2021-12-07 00:37:50,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:37:50,754 INFO L933 BasicCegarLoop]: 901 mSDtfsCounter, 5658 mSDsluCounter, 2784 mSDsCounter, 0 mSdLazyCounter, 2755 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5658 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 2903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 2755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:37:50,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5658 Valid, 3685 Invalid, 2903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 2755 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 00:37:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20924 states. [2021-12-07 00:37:55,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20924 to 16382. [2021-12-07 00:37:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16382 states, 16375 states have (on average 1.422290076335878) internal successors, (23290), 16381 states have internal predecessors, (23290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:55,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16382 states to 16382 states and 23290 transitions. [2021-12-07 00:37:55,863 INFO L78 Accepts]: Start accepts. Automaton has 16382 states and 23290 transitions. Word has length 75 [2021-12-07 00:37:55,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:37:55,863 INFO L470 AbstractCegarLoop]: Abstraction has 16382 states and 23290 transitions. [2021-12-07 00:37:55,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:37:55,863 INFO L276 IsEmpty]: Start isEmpty. Operand 16382 states and 23290 transitions. [2021-12-07 00:37:55,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-07 00:37:55,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:37:55,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:37:55,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-07 00:37:55,865 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:37:55,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:37:55,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1549698848, now seen corresponding path program 1 times [2021-12-07 00:37:55,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:37:55,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932305733] [2021-12-07 00:37:55,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:37:55,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:37:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:37:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:37:55,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:37:55,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932305733] [2021-12-07 00:37:55,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932305733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:37:55,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:37:55,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:37:55,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093694151] [2021-12-07 00:37:55,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:37:55,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:37:55,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:37:55,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:37:55,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:37:55,938 INFO L87 Difference]: Start difference. First operand 16382 states and 23290 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:38:03,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:38:03,763 INFO L93 Difference]: Finished difference Result 21105 states and 29764 transitions. [2021-12-07 00:38:03,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 00:38:03,764 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-12-07 00:38:03,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:38:03,782 INFO L225 Difference]: With dead ends: 21105 [2021-12-07 00:38:03,782 INFO L226 Difference]: Without dead ends: 21022 [2021-12-07 00:38:03,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-07 00:38:03,787 INFO L933 BasicCegarLoop]: 941 mSDtfsCounter, 3295 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3295 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:38:03,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3295 Valid, 3802 Invalid, 3059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 00:38:03,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21022 states. [2021-12-07 00:38:08,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21022 to 16377. [2021-12-07 00:38:08,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16377 states, 16370 states have (on average 1.4223579718998167) internal successors, (23284), 16376 states have internal predecessors, (23284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:38:08,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16377 states to 16377 states and 23284 transitions. [2021-12-07 00:38:08,917 INFO L78 Accepts]: Start accepts. Automaton has 16377 states and 23284 transitions. Word has length 75 [2021-12-07 00:38:08,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:38:08,917 INFO L470 AbstractCegarLoop]: Abstraction has 16377 states and 23284 transitions. [2021-12-07 00:38:08,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:38:08,918 INFO L276 IsEmpty]: Start isEmpty. Operand 16377 states and 23284 transitions. [2021-12-07 00:38:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 00:38:08,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:38:08,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:38:08,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-07 00:38:08,919 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:38:08,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:38:08,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1153859535, now seen corresponding path program 1 times [2021-12-07 00:38:08,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:38:08,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378876705] [2021-12-07 00:38:08,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:08,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:38:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:38:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:38:09,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:38:09,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378876705] [2021-12-07 00:38:09,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378876705] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:38:09,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:38:09,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-12-07 00:38:09,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099819068] [2021-12-07 00:38:09,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:38:09,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-07 00:38:09,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:38:09,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-07 00:38:09,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-12-07 00:38:09,478 INFO L87 Difference]: Start difference. First operand 16377 states and 23284 transitions. Second operand has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:38:26,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:38:26,857 INFO L93 Difference]: Finished difference Result 34738 states and 49196 transitions. [2021-12-07 00:38:26,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-07 00:38:26,858 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-07 00:38:26,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:38:26,896 INFO L225 Difference]: With dead ends: 34738 [2021-12-07 00:38:26,896 INFO L226 Difference]: Without dead ends: 34668 [2021-12-07 00:38:26,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=315, Invalid=1577, Unknown=0, NotChecked=0, Total=1892 [2021-12-07 00:38:26,904 INFO L933 BasicCegarLoop]: 1637 mSDtfsCounter, 10584 mSDsluCounter, 23993 mSDsCounter, 0 mSdLazyCounter, 9205 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10584 SdHoareTripleChecker+Valid, 25630 SdHoareTripleChecker+Invalid, 9394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 9205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:38:26,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10584 Valid, 25630 Invalid, 9394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 9205 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-07 00:38:26,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34668 states. [2021-12-07 00:38:32,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34668 to 16397. [2021-12-07 00:38:32,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16397 states, 16390 states have (on average 1.422208663819402) internal successors, (23310), 16396 states have internal predecessors, (23310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:38:32,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16397 states to 16397 states and 23310 transitions. [2021-12-07 00:38:32,212 INFO L78 Accepts]: Start accepts. Automaton has 16397 states and 23310 transitions. Word has length 77 [2021-12-07 00:38:32,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:38:32,212 INFO L470 AbstractCegarLoop]: Abstraction has 16397 states and 23310 transitions. [2021-12-07 00:38:32,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:38:32,212 INFO L276 IsEmpty]: Start isEmpty. Operand 16397 states and 23310 transitions. [2021-12-07 00:38:32,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 00:38:32,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:38:32,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:38:32,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-07 00:38:32,214 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:38:32,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:38:32,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1139606206, now seen corresponding path program 1 times [2021-12-07 00:38:32,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:38:32,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893870825] [2021-12-07 00:38:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:32,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:38:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:38:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:38:32,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:38:32,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893870825] [2021-12-07 00:38:32,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893870825] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:38:32,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:38:32,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:38:32,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771575631] [2021-12-07 00:38:32,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:38:32,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:38:32,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:38:32,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:38:32,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:38:32,399 INFO L87 Difference]: Start difference. First operand 16397 states and 23310 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:38:46,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:38:46,064 INFO L93 Difference]: Finished difference Result 33697 states and 47839 transitions. [2021-12-07 00:38:46,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:38:46,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-07 00:38:46,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:38:46,100 INFO L225 Difference]: With dead ends: 33697 [2021-12-07 00:38:46,101 INFO L226 Difference]: Without dead ends: 33592 [2021-12-07 00:38:46,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-07 00:38:46,107 INFO L933 BasicCegarLoop]: 1805 mSDtfsCounter, 6747 mSDsluCounter, 9824 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6747 SdHoareTripleChecker+Valid, 11629 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:38:46,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6747 Valid, 11629 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 00:38:46,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33592 states. [2021-12-07 00:38:51,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33592 to 16358. [2021-12-07 00:38:51,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16358 states, 16353 states have (on average 1.422368984284229) internal successors, (23260), 16357 states have internal predecessors, (23260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:38:51,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16358 states to 16358 states and 23260 transitions. [2021-12-07 00:38:51,505 INFO L78 Accepts]: Start accepts. Automaton has 16358 states and 23260 transitions. Word has length 77 [2021-12-07 00:38:51,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:38:51,505 INFO L470 AbstractCegarLoop]: Abstraction has 16358 states and 23260 transitions. [2021-12-07 00:38:51,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:38:51,506 INFO L276 IsEmpty]: Start isEmpty. Operand 16358 states and 23260 transitions. [2021-12-07 00:38:51,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 00:38:51,507 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:38:51,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:38:51,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-07 00:38:51,508 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:38:51,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:38:51,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1710699480, now seen corresponding path program 1 times [2021-12-07 00:38:51,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:38:51,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900468260] [2021-12-07 00:38:51,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:51,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:38:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:38:52,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:38:52,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:38:52,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900468260] [2021-12-07 00:38:52,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900468260] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:38:52,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:38:52,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-12-07 00:38:52,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720807795] [2021-12-07 00:38:52,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:38:52,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-07 00:38:52,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:38:52,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-07 00:38:52,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-12-07 00:38:52,022 INFO L87 Difference]: Start difference. First operand 16358 states and 23260 transitions. Second operand has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:39:06,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:39:06,183 INFO L93 Difference]: Finished difference Result 25312 states and 35735 transitions. [2021-12-07 00:39:06,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-07 00:39:06,184 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-07 00:39:06,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:39:06,210 INFO L225 Difference]: With dead ends: 25312 [2021-12-07 00:39:06,210 INFO L226 Difference]: Without dead ends: 25242 [2021-12-07 00:39:06,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=344, Invalid=1462, Unknown=0, NotChecked=0, Total=1806 [2021-12-07 00:39:06,216 INFO L933 BasicCegarLoop]: 1534 mSDtfsCounter, 13477 mSDsluCounter, 19494 mSDsCounter, 0 mSdLazyCounter, 7417 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13477 SdHoareTripleChecker+Valid, 21028 SdHoareTripleChecker+Invalid, 7677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 7417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-07 00:39:06,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13477 Valid, 21028 Invalid, 7677 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [260 Valid, 7417 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-07 00:39:06,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25242 states. [2021-12-07 00:39:11,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25242 to 16373. [2021-12-07 00:39:11,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16373 states, 16368 states have (on average 1.4221652003910068) internal successors, (23278), 16372 states have internal predecessors, (23278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:39:11,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16373 states to 16373 states and 23278 transitions. [2021-12-07 00:39:11,609 INFO L78 Accepts]: Start accepts. Automaton has 16373 states and 23278 transitions. Word has length 77 [2021-12-07 00:39:11,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:39:11,609 INFO L470 AbstractCegarLoop]: Abstraction has 16373 states and 23278 transitions. [2021-12-07 00:39:11,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:39:11,609 INFO L276 IsEmpty]: Start isEmpty. Operand 16373 states and 23278 transitions. [2021-12-07 00:39:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 00:39:11,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:39:11,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:39:11,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-07 00:39:11,611 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:39:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:39:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash -621222146, now seen corresponding path program 1 times [2021-12-07 00:39:11,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:39:11,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311768855] [2021-12-07 00:39:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:39:11,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:39:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:39:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:39:11,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:39:11,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311768855] [2021-12-07 00:39:11,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311768855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:39:11,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:39:11,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 00:39:11,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932835699] [2021-12-07 00:39:11,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:39:11,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:39:11,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:39:11,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:39:11,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:39:11,787 INFO L87 Difference]: Start difference. First operand 16373 states and 23278 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:39:25,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:39:25,751 INFO L93 Difference]: Finished difference Result 35078 states and 49861 transitions. [2021-12-07 00:39:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 00:39:25,752 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-07 00:39:25,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:39:25,787 INFO L225 Difference]: With dead ends: 35078 [2021-12-07 00:39:25,787 INFO L226 Difference]: Without dead ends: 34919 [2021-12-07 00:39:25,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2021-12-07 00:39:25,795 INFO L933 BasicCegarLoop]: 1268 mSDtfsCounter, 9295 mSDsluCounter, 4569 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9295 SdHoareTripleChecker+Valid, 5837 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:39:25,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9295 Valid, 5837 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 00:39:25,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34919 states. [2021-12-07 00:39:31,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34919 to 16280. [2021-12-07 00:39:31,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16280 states, 16278 states have (on average 1.4227792112053077) internal successors, (23160), 16279 states have internal predecessors, (23160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:39:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16280 states to 16280 states and 23160 transitions. [2021-12-07 00:39:31,284 INFO L78 Accepts]: Start accepts. Automaton has 16280 states and 23160 transitions. Word has length 77 [2021-12-07 00:39:31,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:39:31,284 INFO L470 AbstractCegarLoop]: Abstraction has 16280 states and 23160 transitions. [2021-12-07 00:39:31,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:39:31,284 INFO L276 IsEmpty]: Start isEmpty. Operand 16280 states and 23160 transitions. [2021-12-07 00:39:31,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-07 00:39:31,286 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:39:31,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:39:31,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-07 00:39:31,286 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:39:31,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:39:31,287 INFO L85 PathProgramCache]: Analyzing trace with hash -512482740, now seen corresponding path program 1 times [2021-12-07 00:39:31,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:39:31,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999355393] [2021-12-07 00:39:31,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:39:31,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:39:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:39:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:39:31,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:39:31,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999355393] [2021-12-07 00:39:31,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999355393] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:39:31,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:39:31,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 00:39:31,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236630120] [2021-12-07 00:39:31,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:39:31,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:39:31,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:39:31,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:39:31,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:39:31,473 INFO L87 Difference]: Start difference. First operand 16280 states and 23160 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:39:42,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:39:42,040 INFO L93 Difference]: Finished difference Result 28018 states and 39886 transitions. [2021-12-07 00:39:42,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:39:42,041 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2021-12-07 00:39:42,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:39:42,070 INFO L225 Difference]: With dead ends: 28018 [2021-12-07 00:39:42,070 INFO L226 Difference]: Without dead ends: 27932 [2021-12-07 00:39:42,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:39:42,076 INFO L933 BasicCegarLoop]: 1467 mSDtfsCounter, 5998 mSDsluCounter, 5174 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5998 SdHoareTripleChecker+Valid, 6641 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:39:42,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5998 Valid, 6641 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:39:42,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27932 states. [2021-12-07 00:39:47,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27932 to 16245. [2021-12-07 00:39:47,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16245 states, 16244 states have (on average 1.4229869490273332) internal successors, (23115), 16244 states have internal predecessors, (23115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:39:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16245 states to 16245 states and 23115 transitions. [2021-12-07 00:39:47,727 INFO L78 Accepts]: Start accepts. Automaton has 16245 states and 23115 transitions. Word has length 78 [2021-12-07 00:39:47,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:39:47,727 INFO L470 AbstractCegarLoop]: Abstraction has 16245 states and 23115 transitions. [2021-12-07 00:39:47,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:39:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 16245 states and 23115 transitions. [2021-12-07 00:39:47,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-07 00:39:47,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:39:47,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:39:47,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-07 00:39:47,731 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:39:47,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:39:47,731 INFO L85 PathProgramCache]: Analyzing trace with hash 703536593, now seen corresponding path program 1 times [2021-12-07 00:39:47,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:39:47,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793157090] [2021-12-07 00:39:47,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:39:47,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:39:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:39:47,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:39:47,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:39:47,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793157090] [2021-12-07 00:39:47,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793157090] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:39:47,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:39:47,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:39:47,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505217137] [2021-12-07 00:39:47,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:39:47,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:39:47,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:39:47,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:39:47,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:39:47,786 INFO L87 Difference]: Start difference. First operand 16245 states and 23115 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:40:04,880 INFO L93 Difference]: Finished difference Result 61599 states and 88432 transitions. [2021-12-07 00:40:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:40:04,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-12-07 00:40:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:40:04,936 INFO L225 Difference]: With dead ends: 61599 [2021-12-07 00:40:04,937 INFO L226 Difference]: Without dead ends: 46749 [2021-12-07 00:40:04,951 INFO L932 BasicCegarLoop]: 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 [2021-12-07 00:40:04,952 INFO L933 BasicCegarLoop]: 1157 mSDtfsCounter, 4466 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4466 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:40:04,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4466 Valid, 2427 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:40:04,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46749 states. [2021-12-07 00:40:15,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46749 to 30277. [2021-12-07 00:40:15,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30277 states, 30276 states have (on average 1.416138195270181) internal successors, (42875), 30276 states have internal predecessors, (42875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:15,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30277 states to 30277 states and 42875 transitions. [2021-12-07 00:40:15,877 INFO L78 Accepts]: Start accepts. Automaton has 30277 states and 42875 transitions. Word has length 84 [2021-12-07 00:40:15,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:40:15,877 INFO L470 AbstractCegarLoop]: Abstraction has 30277 states and 42875 transitions. [2021-12-07 00:40:15,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:15,878 INFO L276 IsEmpty]: Start isEmpty. Operand 30277 states and 42875 transitions. [2021-12-07 00:40:15,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-07 00:40:15,881 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:40:15,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:40:15,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-07 00:40:15,881 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:40:15,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:40:15,881 INFO L85 PathProgramCache]: Analyzing trace with hash -202569644, now seen corresponding path program 1 times [2021-12-07 00:40:15,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:40:15,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662770270] [2021-12-07 00:40:15,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:15,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:40:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:40:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:40:15,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:40:15,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662770270] [2021-12-07 00:40:15,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662770270] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:40:15,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:40:15,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:40:15,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825681573] [2021-12-07 00:40:15,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:40:15,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:40:15,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:40:15,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:40:15,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:40:15,945 INFO L87 Difference]: Start difference. First operand 30277 states and 42875 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:40:24,870 INFO L93 Difference]: Finished difference Result 50909 states and 72145 transitions. [2021-12-07 00:40:24,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:40:24,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-12-07 00:40:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:40:24,891 INFO L225 Difference]: With dead ends: 50909 [2021-12-07 00:40:24,892 INFO L226 Difference]: Without dead ends: 22015 [2021-12-07 00:40:24,909 INFO L932 BasicCegarLoop]: 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 [2021-12-07 00:40:24,909 INFO L933 BasicCegarLoop]: 1153 mSDtfsCounter, 3072 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3072 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:40:24,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3072 Valid, 1808 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:40:24,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22015 states. [2021-12-07 00:40:33,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22015 to 22009. [2021-12-07 00:40:33,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22009 states, 22008 states have (on average 1.4023991275899672) internal successors, (30864), 22008 states have internal predecessors, (30864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:33,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22009 states to 22009 states and 30864 transitions. [2021-12-07 00:40:33,493 INFO L78 Accepts]: Start accepts. Automaton has 22009 states and 30864 transitions. Word has length 85 [2021-12-07 00:40:33,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:40:33,493 INFO L470 AbstractCegarLoop]: Abstraction has 22009 states and 30864 transitions. [2021-12-07 00:40:33,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:33,493 INFO L276 IsEmpty]: Start isEmpty. Operand 22009 states and 30864 transitions. [2021-12-07 00:40:33,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-07 00:40:33,496 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:40:33,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:40:33,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-07 00:40:33,497 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:40:33,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:40:33,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1479848435, now seen corresponding path program 1 times [2021-12-07 00:40:33,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:40:33,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094819657] [2021-12-07 00:40:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:40:33,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:40:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:40:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:40:33,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:40:33,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094819657] [2021-12-07 00:40:33,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094819657] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:40:33,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:40:33,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:40:33,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43396298] [2021-12-07 00:40:33,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:40:33,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:40:33,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:40:33,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:40:33,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:40:33,573 INFO L87 Difference]: Start difference. First operand 22009 states and 30864 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:40:50,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:40:50,022 INFO L93 Difference]: Finished difference Result 61807 states and 87042 transitions. [2021-12-07 00:40:50,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:40:50,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-07 00:40:50,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:40:50,069 INFO L225 Difference]: With dead ends: 61807 [2021-12-07 00:40:50,069 INFO L226 Difference]: Without dead ends: 41181 [2021-12-07 00:40:50,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:40:50,085 INFO L933 BasicCegarLoop]: 1206 mSDtfsCounter, 683 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:40:50,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 1709 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:40:50,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41181 states. [2021-12-07 00:41:05,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41181 to 39227. [2021-12-07 00:41:05,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39227 states, 39226 states have (on average 1.3976954061081936) internal successors, (54826), 39226 states have internal predecessors, (54826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39227 states to 39227 states and 54826 transitions. [2021-12-07 00:41:05,988 INFO L78 Accepts]: Start accepts. Automaton has 39227 states and 54826 transitions. Word has length 87 [2021-12-07 00:41:05,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:41:05,988 INFO L470 AbstractCegarLoop]: Abstraction has 39227 states and 54826 transitions. [2021-12-07 00:41:05,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:41:05,989 INFO L276 IsEmpty]: Start isEmpty. Operand 39227 states and 54826 transitions. [2021-12-07 00:41:05,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-07 00:41:05,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:41:05,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:41:05,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-07 00:41:05,992 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:41:05,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:41:05,992 INFO L85 PathProgramCache]: Analyzing trace with hash 614306871, now seen corresponding path program 1 times [2021-12-07 00:41:05,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:41:05,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010618190] [2021-12-07 00:41:05,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:41:05,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:41:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:41:06,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:41:06,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:41:06,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010618190] [2021-12-07 00:41:06,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010618190] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:41:06,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:41:06,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:41:06,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381954670] [2021-12-07 00:41:06,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:41:06,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:41:06,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:41:06,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:41:06,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:41:06,037 INFO L87 Difference]: Start difference. First operand 39227 states and 54826 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) [2021-12-07 00:41:36,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:41:36,522 INFO L93 Difference]: Finished difference Result 112007 states and 156572 transitions. [2021-12-07 00:41:36,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:41:36,523 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 [2021-12-07 00:41:36,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:41:36,624 INFO L225 Difference]: With dead ends: 112007 [2021-12-07 00:41:36,624 INFO L226 Difference]: Without dead ends: 74163 [2021-12-07 00:41:36,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:41:36,650 INFO L933 BasicCegarLoop]: 1187 mSDtfsCounter, 569 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:41:36,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 1784 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:41:36,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74163 states. [2021-12-07 00:42:05,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74163 to 70257. [2021-12-07 00:42:05,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70257 states, 70256 states have (on average 1.387013208836256) internal successors, (97446), 70256 states have internal predecessors, (97446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:42:05,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70257 states to 70257 states and 97446 transitions. [2021-12-07 00:42:05,831 INFO L78 Accepts]: Start accepts. Automaton has 70257 states and 97446 transitions. Word has length 88 [2021-12-07 00:42:05,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:42:05,831 INFO L470 AbstractCegarLoop]: Abstraction has 70257 states and 97446 transitions. [2021-12-07 00:42:05,832 INFO L471 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) [2021-12-07 00:42:05,832 INFO L276 IsEmpty]: Start isEmpty. Operand 70257 states and 97446 transitions. [2021-12-07 00:42:05,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-07 00:42:05,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:42:05,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:42:05,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-07 00:42:05,835 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:42:05,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:42:05,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1738658275, now seen corresponding path program 1 times [2021-12-07 00:42:05,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:42:05,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993455142] [2021-12-07 00:42:05,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:42:05,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:42:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:42:05,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:42:05,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:42:05,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993455142] [2021-12-07 00:42:05,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993455142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:42:05,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:42:05,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:42:05,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101055074] [2021-12-07 00:42:05,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:42:05,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:42:05,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:42:05,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:42:05,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:42:05,906 INFO L87 Difference]: Start difference. First operand 70257 states and 97446 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2021-12-07 00:43:09,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:43:09,735 INFO L93 Difference]: Finished difference Result 147123 states and 201927 transitions. [2021-12-07 00:43:09,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:43:09,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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 [2021-12-07 00:43:09,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:43:09,951 INFO L225 Difference]: With dead ends: 147123 [2021-12-07 00:43:09,951 INFO L226 Difference]: Without dead ends: 147121 [2021-12-07 00:43:09,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:43:09,981 INFO L933 BasicCegarLoop]: 1245 mSDtfsCounter, 1226 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:43:09,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 4964 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:43:10,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147121 states. [2021-12-07 00:43:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147121 to 74457. [2021-12-07 00:43:42,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74457 states, 74456 states have (on average 1.3651821209842054) internal successors, (101646), 74456 states have internal predecessors, (101646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:43:43,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74457 states to 74457 states and 101646 transitions. [2021-12-07 00:43:43,055 INFO L78 Accepts]: Start accepts. Automaton has 74457 states and 101646 transitions. Word has length 91 [2021-12-07 00:43:43,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:43:43,055 INFO L470 AbstractCegarLoop]: Abstraction has 74457 states and 101646 transitions. [2021-12-07 00:43:43,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2021-12-07 00:43:43,055 INFO L276 IsEmpty]: Start isEmpty. Operand 74457 states and 101646 transitions. [2021-12-07 00:43:43,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-07 00:43:43,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:43:43,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:43:43,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-07 00:43:43,059 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:43:43,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:43:43,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1834702688, now seen corresponding path program 1 times [2021-12-07 00:43:43,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:43:43,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247339442] [2021-12-07 00:43:43,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:43:43,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:43:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:43:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:43:43,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:43:43,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247339442] [2021-12-07 00:43:43,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247339442] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:43:43,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:43:43,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:43:43,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940479375] [2021-12-07 00:43:43,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:43:43,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:43:43,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:43:43,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:43:43,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:43:43,106 INFO L87 Difference]: Start difference. First operand 74457 states and 101646 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) [2021-12-07 00:44:43,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:44:43,955 INFO L93 Difference]: Finished difference Result 209201 states and 285332 transitions. [2021-12-07 00:44:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:44:43,955 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 [2021-12-07 00:44:43,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:44:44,157 INFO L225 Difference]: With dead ends: 209201 [2021-12-07 00:44:44,157 INFO L226 Difference]: Without dead ends: 136127 [2021-12-07 00:44:44,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:44:44,214 INFO L933 BasicCegarLoop]: 1142 mSDtfsCounter, 599 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:44:44,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 1743 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:44:44,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136127 states. [2021-12-07 00:45:45,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136127 to 136125. [2021-12-07 00:45:45,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136125 states, 136124 states have (on average 1.3508418794628427) internal successors, (183882), 136124 states have internal predecessors, (183882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:45:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136125 states to 136125 states and 183882 transitions. [2021-12-07 00:45:45,746 INFO L78 Accepts]: Start accepts. Automaton has 136125 states and 183882 transitions. Word has length 92 [2021-12-07 00:45:45,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:45:45,746 INFO L470 AbstractCegarLoop]: Abstraction has 136125 states and 183882 transitions. [2021-12-07 00:45:45,746 INFO L471 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) [2021-12-07 00:45:45,746 INFO L276 IsEmpty]: Start isEmpty. Operand 136125 states and 183882 transitions. [2021-12-07 00:45:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-07 00:45:45,750 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:45:45,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:45:45,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-07 00:45:45,751 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-12-07 00:45:45,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:45:45,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1326520942, now seen corresponding path program 1 times [2021-12-07 00:45:45,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:45:45,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513702772] [2021-12-07 00:45:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:45:45,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:45:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:45:45,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:45:45,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:45:45,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513702772] [2021-12-07 00:45:45,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513702772] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:45:45,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:45:45,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:45:45,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132197240] [2021-12-07 00:45:45,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:45:45,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:45:45,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:45:45,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:45:45,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:45:45,800 INFO L87 Difference]: Start difference. First operand 136125 states and 183882 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:46:34,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:46:34,563 INFO L93 Difference]: Finished difference Result 165497 states and 222988 transitions. [2021-12-07 00:46:34,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:46:34,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-12-07 00:46:34,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:46:34,719 INFO L225 Difference]: With dead ends: 165497 [2021-12-07 00:46:34,720 INFO L226 Difference]: Without dead ends: 106737 [2021-12-07 00:46:34,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:46:34,761 INFO L933 BasicCegarLoop]: 1164 mSDtfsCounter, 431 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:46:34,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1930 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:46:34,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106737 states.