./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ --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 9a9140492f4e733c378f87636be646ccd8e7d2f60174537e06a80c7020d713fe --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:40:27,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:40:27,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:40:27,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:40:27,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:40:27,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:40:27,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:40:27,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:40:27,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:40:27,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:40:27,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:40:27,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:40:27,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:40:27,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:40:27,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:40:27,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:40:27,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:40:27,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:40:27,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:40:27,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:40:27,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:40:27,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:40:27,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:40:27,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:40:27,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:40:27,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:40:27,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:40:27,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:40:27,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:40:27,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:40:27,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:40:27,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:40:27,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:40:27,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:40:27,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:40:27,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:40:27,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:40:27,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:40:27,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:40:27,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:40:27,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:40:27,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:40:27,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:40:27,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:40:27,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:40:27,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:40:27,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:40:27,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:40:27,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:40:27,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:40:27,769 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:40:27,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:40:27,770 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:40:27,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:40:27,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:40:27,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:40:27,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:40:27,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:40:27,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:40:27,771 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:40:27,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:40:27,772 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:40:27,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:40:27,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:40:27,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:40:27,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:40:27,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:40:27,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:40:27,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:40:27,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:40:27,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:40:27,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:40:27,775 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:40:27,775 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:40:27,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:40:27,775 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_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a9140492f4e733c378f87636be646ccd8e7d2f60174537e06a80c7020d713fe [2022-10-17 10:40:28,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:40:28,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:40:28,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:40:28,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:40:28,058 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:40:28,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-10-17 10:40:28,125 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/data/cc7013c8b/565b5a5fcc4744b99cc743fc940216cd/FLAG752596cae [2022-10-17 10:40:28,776 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:40:28,776 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-10-17 10:40:28,796 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/data/cc7013c8b/565b5a5fcc4744b99cc743fc940216cd/FLAG752596cae [2022-10-17 10:40:29,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/data/cc7013c8b/565b5a5fcc4744b99cc743fc940216cd [2022-10-17 10:40:29,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:40:29,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:40:29,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:40:29,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:40:29,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:40:29,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:40:29" (1/1) ... [2022-10-17 10:40:29,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6081eeb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:29, skipping insertion in model container [2022-10-17 10:40:29,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:40:29" (1/1) ... [2022-10-17 10:40:29,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:40:29,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:40:29,479 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_797854fa-ad2d-44dc-bb16-1a181562b3d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8635,8648] [2022-10-17 10:40:29,526 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_797854fa-ad2d-44dc-bb16-1a181562b3d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15820,15833] [2022-10-17 10:40:29,540 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_797854fa-ad2d-44dc-bb16-1a181562b3d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18017,18030] [2022-10-17 10:40:29,567 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_797854fa-ad2d-44dc-bb16-1a181562b3d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19041,19054] [2022-10-17 10:40:29,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:40:29,811 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:40:29,869 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_797854fa-ad2d-44dc-bb16-1a181562b3d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8635,8648] [2022-10-17 10:40:29,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15820,15833] [2022-10-17 10:40:29,910 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_797854fa-ad2d-44dc-bb16-1a181562b3d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18017,18030] [2022-10-17 10:40:29,915 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_797854fa-ad2d-44dc-bb16-1a181562b3d4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19041,19054] [2022-10-17 10:40:30,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:40:30,075 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:40:30,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30 WrapperNode [2022-10-17 10:40:30,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:40:30,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:40:30,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:40:30,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:40:30,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,274 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2589 [2022-10-17 10:40:30,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:40:30,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:40:30,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:40:30,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:40:30,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,382 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:40:30,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:40:30,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:40:30,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:40:30,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (1/1) ... [2022-10-17 10:40:30,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:40:30,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:30,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:30,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797854fa-ad2d-44dc-bb16-1a181562b3d4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:40:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:40:30,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:40:30,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:40:30,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:40:30,718 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:40:30,721 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:40:32,323 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:40:32,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:40:32,345 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:40:32,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:40:32 BoogieIcfgContainer [2022-10-17 10:40:32,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:40:32,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:40:32,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:40:32,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:40:32,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:40:29" (1/3) ... [2022-10-17 10:40:32,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3d349a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:40:32, skipping insertion in model container [2022-10-17 10:40:32,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:30" (2/3) ... [2022-10-17 10:40:32,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3d349a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:40:32, skipping insertion in model container [2022-10-17 10:40:32,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:40:32" (3/3) ... [2022-10-17 10:40:32,359 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-10-17 10:40:32,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:40:32,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-17 10:40:32,457 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:40:32,464 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b7e5a71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:40:32,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-17 10:40:32,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 452 states have (on average 1.8495575221238938) internal successors, (836), 456 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 10:40:32,489 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:32,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:32,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:32,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:32,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1707798208, now seen corresponding path program 1 times [2022-10-17 10:40:32,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:32,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29527444] [2022-10-17 10:40:32,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:32,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:33,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:33,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29527444] [2022-10-17 10:40:33,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29527444] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:33,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:33,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:40:33,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739333674] [2022-10-17 10:40:33,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:33,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:40:33,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:33,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:40:33,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:33,067 INFO L87 Difference]: Start difference. First operand has 457 states, 452 states have (on average 1.8495575221238938) internal successors, (836), 456 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:33,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:33,267 INFO L93 Difference]: Finished difference Result 725 states and 1271 transitions. [2022-10-17 10:40:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:40:33,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-17 10:40:33,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:33,290 INFO L225 Difference]: With dead ends: 725 [2022-10-17 10:40:33,290 INFO L226 Difference]: Without dead ends: 571 [2022-10-17 10:40:33,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:33,299 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 438 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:33,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1416 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:40:33,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-10-17 10:40:33,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 565. [2022-10-17 10:40:33,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 561 states have (on average 1.3440285204991087) internal successors, (754), 564 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:33,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 754 transitions. [2022-10-17 10:40:33,391 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 754 transitions. Word has length 51 [2022-10-17 10:40:33,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:33,392 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 754 transitions. [2022-10-17 10:40:33,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:33,393 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 754 transitions. [2022-10-17 10:40:33,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 10:40:33,397 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:33,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:33,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:40:33,398 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:33,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:33,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1349444518, now seen corresponding path program 1 times [2022-10-17 10:40:33,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:33,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868197631] [2022-10-17 10:40:33,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:33,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:33,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:33,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868197631] [2022-10-17 10:40:33,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868197631] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:33,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:33,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:40:33,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908490135] [2022-10-17 10:40:33,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:33,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:40:33,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:33,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:40:33,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:33,590 INFO L87 Difference]: Start difference. First operand 565 states and 754 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:33,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:33,740 INFO L93 Difference]: Finished difference Result 994 states and 1379 transitions. [2022-10-17 10:40:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:40:33,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-17 10:40:33,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:33,747 INFO L225 Difference]: With dead ends: 994 [2022-10-17 10:40:33,748 INFO L226 Difference]: Without dead ends: 781 [2022-10-17 10:40:33,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:33,754 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 314 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:33,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1017 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:40:33,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-10-17 10:40:33,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 774. [2022-10-17 10:40:33,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 770 states have (on average 1.3714285714285714) internal successors, (1056), 773 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:33,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1056 transitions. [2022-10-17 10:40:33,842 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1056 transitions. Word has length 51 [2022-10-17 10:40:33,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:33,845 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1056 transitions. [2022-10-17 10:40:33,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:33,846 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1056 transitions. [2022-10-17 10:40:33,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 10:40:33,853 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:33,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:33,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:40:33,854 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:33,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:33,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1493728400, now seen corresponding path program 1 times [2022-10-17 10:40:33,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:33,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831157903] [2022-10-17 10:40:33,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:33,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:34,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:34,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:34,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831157903] [2022-10-17 10:40:34,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831157903] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:34,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:34,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:40:34,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978240036] [2022-10-17 10:40:34,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:34,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:40:34,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:34,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:40:34,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:40:34,089 INFO L87 Difference]: Start difference. First operand 774 states and 1056 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:34,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:34,659 INFO L93 Difference]: Finished difference Result 1716 states and 2415 transitions. [2022-10-17 10:40:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:40:34,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-17 10:40:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:34,667 INFO L225 Difference]: With dead ends: 1716 [2022-10-17 10:40:34,667 INFO L226 Difference]: Without dead ends: 1059 [2022-10-17 10:40:34,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:40:34,675 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1737 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:34,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 391 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:40:34,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2022-10-17 10:40:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1053. [2022-10-17 10:40:34,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1049 states have (on average 1.4089609151572926) internal successors, (1478), 1052 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:34,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1478 transitions. [2022-10-17 10:40:34,778 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1478 transitions. Word has length 51 [2022-10-17 10:40:34,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:34,780 INFO L495 AbstractCegarLoop]: Abstraction has 1053 states and 1478 transitions. [2022-10-17 10:40:34,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:34,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1478 transitions. [2022-10-17 10:40:34,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-17 10:40:34,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:34,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:34,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:40:34,784 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:34,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:34,785 INFO L85 PathProgramCache]: Analyzing trace with hash -358090099, now seen corresponding path program 1 times [2022-10-17 10:40:34,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:34,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141171880] [2022-10-17 10:40:34,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:34,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:34,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:34,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141171880] [2022-10-17 10:40:34,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141171880] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:34,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:34,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:40:34,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191049168] [2022-10-17 10:40:34,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:34,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:40:34,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:34,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:40:34,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:34,948 INFO L87 Difference]: Start difference. First operand 1053 states and 1478 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:35,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:35,129 INFO L93 Difference]: Finished difference Result 2099 states and 2965 transitions. [2022-10-17 10:40:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:40:35,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-10-17 10:40:35,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:35,140 INFO L225 Difference]: With dead ends: 2099 [2022-10-17 10:40:35,140 INFO L226 Difference]: Without dead ends: 1399 [2022-10-17 10:40:35,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:35,154 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 364 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:35,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 929 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:40:35,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2022-10-17 10:40:35,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1385. [2022-10-17 10:40:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1381 states have (on average 1.3721940622737148) internal successors, (1895), 1384 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:35,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1895 transitions. [2022-10-17 10:40:35,331 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1895 transitions. Word has length 52 [2022-10-17 10:40:35,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:35,332 INFO L495 AbstractCegarLoop]: Abstraction has 1385 states and 1895 transitions. [2022-10-17 10:40:35,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:35,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1895 transitions. [2022-10-17 10:40:35,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-17 10:40:35,336 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:35,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:35,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:40:35,337 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:35,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:35,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1296606516, now seen corresponding path program 1 times [2022-10-17 10:40:35,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:35,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017699222] [2022-10-17 10:40:35,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:35,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:35,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:35,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017699222] [2022-10-17 10:40:35,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017699222] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:35,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:35,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:40:35,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210607664] [2022-10-17 10:40:35,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:35,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:40:35,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:35,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:40:35,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:40:35,553 INFO L87 Difference]: Start difference. First operand 1385 states and 1895 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:36,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:36,113 INFO L93 Difference]: Finished difference Result 2980 states and 4125 transitions. [2022-10-17 10:40:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:40:36,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-10-17 10:40:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:36,124 INFO L225 Difference]: With dead ends: 2980 [2022-10-17 10:40:36,124 INFO L226 Difference]: Without dead ends: 1767 [2022-10-17 10:40:36,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:40:36,129 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 1521 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:36,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 367 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:40:36,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2022-10-17 10:40:36,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1755. [2022-10-17 10:40:36,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1751 states have (on average 1.3774985722444317) internal successors, (2412), 1754 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:36,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2412 transitions. [2022-10-17 10:40:36,347 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2412 transitions. Word has length 52 [2022-10-17 10:40:36,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:36,349 INFO L495 AbstractCegarLoop]: Abstraction has 1755 states and 2412 transitions. [2022-10-17 10:40:36,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:36,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2412 transitions. [2022-10-17 10:40:36,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-17 10:40:36,352 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:36,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:36,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:40:36,353 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:36,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:36,355 INFO L85 PathProgramCache]: Analyzing trace with hash -482685133, now seen corresponding path program 1 times [2022-10-17 10:40:36,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:36,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234965267] [2022-10-17 10:40:36,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:36,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:36,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:36,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234965267] [2022-10-17 10:40:36,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234965267] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:36,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:36,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:40:36,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978715348] [2022-10-17 10:40:36,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:36,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:40:36,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:36,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:40:36,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:40:36,492 INFO L87 Difference]: Start difference. First operand 1755 states and 2412 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:37,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:37,060 INFO L93 Difference]: Finished difference Result 3900 states and 5393 transitions. [2022-10-17 10:40:37,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:40:37,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-17 10:40:37,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:37,075 INFO L225 Difference]: With dead ends: 3900 [2022-10-17 10:40:37,075 INFO L226 Difference]: Without dead ends: 2317 [2022-10-17 10:40:37,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:40:37,079 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1366 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:37,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 335 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:40:37,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2022-10-17 10:40:37,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2301. [2022-10-17 10:40:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2297 states have (on average 1.370047888550283) internal successors, (3147), 2300 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3147 transitions. [2022-10-17 10:40:37,398 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3147 transitions. Word has length 53 [2022-10-17 10:40:37,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:37,398 INFO L495 AbstractCegarLoop]: Abstraction has 2301 states and 3147 transitions. [2022-10-17 10:40:37,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:37,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3147 transitions. [2022-10-17 10:40:37,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-17 10:40:37,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:37,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:37,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:40:37,402 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:37,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1630046103, now seen corresponding path program 1 times [2022-10-17 10:40:37,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:37,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990085739] [2022-10-17 10:40:37,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:37,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:37,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:37,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990085739] [2022-10-17 10:40:37,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990085739] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:37,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:37,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:40:37,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280688726] [2022-10-17 10:40:37,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:37,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:40:37,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:37,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:40:37,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:40:37,580 INFO L87 Difference]: Start difference. First operand 2301 states and 3147 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:39,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:39,131 INFO L93 Difference]: Finished difference Result 7377 states and 10306 transitions. [2022-10-17 10:40:39,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:40:39,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-17 10:40:39,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:39,173 INFO L225 Difference]: With dead ends: 7377 [2022-10-17 10:40:39,174 INFO L226 Difference]: Without dead ends: 6335 [2022-10-17 10:40:39,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:40:39,179 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 2702 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2702 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:39,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2702 Valid, 599 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:40:39,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6335 states. [2022-10-17 10:40:39,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6335 to 2315. [2022-10-17 10:40:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 2311 states have (on average 1.3695369969710083) internal successors, (3165), 2314 states have internal predecessors, (3165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:39,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 3165 transitions. [2022-10-17 10:40:39,681 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 3165 transitions. Word has length 54 [2022-10-17 10:40:39,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:39,682 INFO L495 AbstractCegarLoop]: Abstraction has 2315 states and 3165 transitions. [2022-10-17 10:40:39,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:39,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 3165 transitions. [2022-10-17 10:40:39,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-17 10:40:39,685 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:39,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:39,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:40:39,686 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:39,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:39,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1470909546, now seen corresponding path program 1 times [2022-10-17 10:40:39,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:39,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79476093] [2022-10-17 10:40:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:39,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:39,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:39,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:39,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79476093] [2022-10-17 10:40:39,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79476093] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:39,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:39,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:40:39,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831837812] [2022-10-17 10:40:39,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:39,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:40:39,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:39,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:40:39,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:40:39,834 INFO L87 Difference]: Start difference. First operand 2315 states and 3165 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:41,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:41,959 INFO L93 Difference]: Finished difference Result 8133 states and 11423 transitions. [2022-10-17 10:40:41,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:40:41,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-17 10:40:41,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:42,000 INFO L225 Difference]: With dead ends: 8133 [2022-10-17 10:40:42,000 INFO L226 Difference]: Without dead ends: 7286 [2022-10-17 10:40:42,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:40:42,004 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 2024 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2024 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:42,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2024 Valid, 757 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-17 10:40:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7286 states. [2022-10-17 10:40:42,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7286 to 2337. [2022-10-17 10:40:42,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2333 states have (on average 1.36990998714102) internal successors, (3196), 2336 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:42,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 3196 transitions. [2022-10-17 10:40:42,525 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 3196 transitions. Word has length 54 [2022-10-17 10:40:42,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:42,526 INFO L495 AbstractCegarLoop]: Abstraction has 2337 states and 3196 transitions. [2022-10-17 10:40:42,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:42,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 3196 transitions. [2022-10-17 10:40:42,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-17 10:40:42,529 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:42,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:42,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:40:42,530 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:42,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:42,531 INFO L85 PathProgramCache]: Analyzing trace with hash 269556297, now seen corresponding path program 1 times [2022-10-17 10:40:42,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:42,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298026030] [2022-10-17 10:40:42,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:42,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:42,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:42,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:42,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298026030] [2022-10-17 10:40:42,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298026030] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:42,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:42,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:40:42,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171209519] [2022-10-17 10:40:42,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:42,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:40:42,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:42,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:40:42,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:40:42,704 INFO L87 Difference]: Start difference. First operand 2337 states and 3196 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:45,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:45,402 INFO L93 Difference]: Finished difference Result 9898 states and 13851 transitions. [2022-10-17 10:40:45,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:40:45,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-17 10:40:45,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:45,487 INFO L225 Difference]: With dead ends: 9898 [2022-10-17 10:40:45,487 INFO L226 Difference]: Without dead ends: 8930 [2022-10-17 10:40:45,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:40:45,492 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 3178 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3178 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:45,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3178 Valid, 655 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:40:45,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8930 states. [2022-10-17 10:40:45,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8930 to 2371. [2022-10-17 10:40:45,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2367 states have (on average 1.3688212927756653) internal successors, (3240), 2370 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:45,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3240 transitions. [2022-10-17 10:40:45,980 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3240 transitions. Word has length 54 [2022-10-17 10:40:45,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:45,981 INFO L495 AbstractCegarLoop]: Abstraction has 2371 states and 3240 transitions. [2022-10-17 10:40:45,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:45,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3240 transitions. [2022-10-17 10:40:45,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:40:45,985 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:45,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:45,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:40:45,985 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:45,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1866987345, now seen corresponding path program 1 times [2022-10-17 10:40:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:45,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711058024] [2022-10-17 10:40:45,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:45,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:46,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:46,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711058024] [2022-10-17 10:40:46,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711058024] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:46,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:46,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:40:46,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17564259] [2022-10-17 10:40:46,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:46,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:40:46,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:46,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:40:46,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:40:46,323 INFO L87 Difference]: Start difference. First operand 2371 states and 3240 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:47,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:47,953 INFO L93 Difference]: Finished difference Result 5804 states and 8101 transitions. [2022-10-17 10:40:47,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:40:47,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-17 10:40:47,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:47,961 INFO L225 Difference]: With dead ends: 5804 [2022-10-17 10:40:47,961 INFO L226 Difference]: Without dead ends: 4260 [2022-10-17 10:40:47,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:40:47,966 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 2434 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:47,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 929 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-17 10:40:47,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4260 states. [2022-10-17 10:40:48,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4260 to 2284. [2022-10-17 10:40:48,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 2280 states have (on average 1.3675438596491227) internal successors, (3118), 2283 states have internal predecessors, (3118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3118 transitions. [2022-10-17 10:40:48,419 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3118 transitions. Word has length 55 [2022-10-17 10:40:48,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:48,419 INFO L495 AbstractCegarLoop]: Abstraction has 2284 states and 3118 transitions. [2022-10-17 10:40:48,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3118 transitions. [2022-10-17 10:40:48,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:40:48,422 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:48,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:48,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:40:48,423 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:48,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:48,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1508633655, now seen corresponding path program 1 times [2022-10-17 10:40:48,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:48,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091629788] [2022-10-17 10:40:48,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:48,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:48,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:48,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:48,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091629788] [2022-10-17 10:40:48,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091629788] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:48,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:48,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:40:48,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040057398] [2022-10-17 10:40:48,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:48,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:40:48,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:48,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:40:48,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:40:48,738 INFO L87 Difference]: Start difference. First operand 2284 states and 3118 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:50,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:50,789 INFO L93 Difference]: Finished difference Result 7120 states and 9979 transitions. [2022-10-17 10:40:50,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:40:50,790 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-17 10:40:50,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:50,802 INFO L225 Difference]: With dead ends: 7120 [2022-10-17 10:40:50,802 INFO L226 Difference]: Without dead ends: 5730 [2022-10-17 10:40:50,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:40:50,806 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 2130 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2130 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:50,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2130 Valid, 1543 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-17 10:40:50,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5730 states. [2022-10-17 10:40:51,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5730 to 2255. [2022-10-17 10:40:51,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3669480231008442) internal successors, (3077), 2254 states have internal predecessors, (3077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3077 transitions. [2022-10-17 10:40:51,320 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3077 transitions. Word has length 55 [2022-10-17 10:40:51,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:51,321 INFO L495 AbstractCegarLoop]: Abstraction has 2255 states and 3077 transitions. [2022-10-17 10:40:51,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:51,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3077 transitions. [2022-10-17 10:40:51,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:40:51,324 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:51,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:51,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 10:40:51,325 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:51,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:51,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1235712110, now seen corresponding path program 1 times [2022-10-17 10:40:51,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:51,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676080959] [2022-10-17 10:40:51,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:51,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:51,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:51,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676080959] [2022-10-17 10:40:51,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676080959] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:51,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:51,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:40:51,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599898605] [2022-10-17 10:40:51,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:51,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:40:51,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:51,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:40:51,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:40:51,637 INFO L87 Difference]: Start difference. First operand 2255 states and 3077 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:53,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:53,765 INFO L93 Difference]: Finished difference Result 5396 states and 7541 transitions. [2022-10-17 10:40:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:40:53,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-17 10:40:53,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:53,777 INFO L225 Difference]: With dead ends: 5396 [2022-10-17 10:40:53,777 INFO L226 Difference]: Without dead ends: 5391 [2022-10-17 10:40:53,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:40:53,780 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 1226 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:53,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 1222 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-17 10:40:53,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5391 states. [2022-10-17 10:40:54,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5391 to 2255. [2022-10-17 10:40:54,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3660595290981785) internal successors, (3075), 2254 states have internal predecessors, (3075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:54,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3075 transitions. [2022-10-17 10:40:54,398 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3075 transitions. Word has length 55 [2022-10-17 10:40:54,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:54,398 INFO L495 AbstractCegarLoop]: Abstraction has 2255 states and 3075 transitions. [2022-10-17 10:40:54,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:54,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3075 transitions. [2022-10-17 10:40:54,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-17 10:40:54,402 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:54,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:54,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-17 10:40:54,402 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:54,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:54,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1411677613, now seen corresponding path program 1 times [2022-10-17 10:40:54,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:54,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028797730] [2022-10-17 10:40:54,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:54,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:54,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:54,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:54,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028797730] [2022-10-17 10:40:54,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028797730] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:54,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:54,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:40:54,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778817833] [2022-10-17 10:40:54,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:54,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:40:54,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:54,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:40:54,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:54,470 INFO L87 Difference]: Start difference. First operand 2255 states and 3075 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:55,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:55,243 INFO L93 Difference]: Finished difference Result 3200 states and 4403 transitions. [2022-10-17 10:40:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:40:55,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-17 10:40:55,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:55,248 INFO L225 Difference]: With dead ends: 3200 [2022-10-17 10:40:55,248 INFO L226 Difference]: Without dead ends: 2262 [2022-10-17 10:40:55,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:55,250 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 222 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:55,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 791 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:40:55,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-10-17 10:40:55,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2255. [2022-10-17 10:40:55,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3527321190581965) internal successors, (3045), 2254 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:55,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3045 transitions. [2022-10-17 10:40:55,720 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3045 transitions. Word has length 56 [2022-10-17 10:40:55,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:55,720 INFO L495 AbstractCegarLoop]: Abstraction has 2255 states and 3045 transitions. [2022-10-17 10:40:55,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:55,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3045 transitions. [2022-10-17 10:40:55,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-17 10:40:55,723 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:55,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:55,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-17 10:40:55,724 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:55,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:55,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1038080617, now seen corresponding path program 1 times [2022-10-17 10:40:55,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:55,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460941075] [2022-10-17 10:40:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:55,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:55,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:55,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:55,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460941075] [2022-10-17 10:40:55,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460941075] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:55,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:55,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:40:55,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334331106] [2022-10-17 10:40:55,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:55,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:40:55,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:55,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:40:55,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:55,798 INFO L87 Difference]: Start difference. First operand 2255 states and 3045 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:56,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:56,376 INFO L93 Difference]: Finished difference Result 3257 states and 4435 transitions. [2022-10-17 10:40:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:40:56,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-17 10:40:56,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:56,381 INFO L225 Difference]: With dead ends: 3257 [2022-10-17 10:40:56,381 INFO L226 Difference]: Without dead ends: 2261 [2022-10-17 10:40:56,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:56,384 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 238 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:56,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 796 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:40:56,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2022-10-17 10:40:57,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2255. [2022-10-17 10:40:57,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3402932030208796) internal successors, (3017), 2254 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:57,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3017 transitions. [2022-10-17 10:40:57,166 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3017 transitions. Word has length 56 [2022-10-17 10:40:57,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:57,166 INFO L495 AbstractCegarLoop]: Abstraction has 2255 states and 3017 transitions. [2022-10-17 10:40:57,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:57,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3017 transitions. [2022-10-17 10:40:57,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-17 10:40:57,170 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:57,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:40:57,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-17 10:40:57,171 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:40:57,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:57,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1735355720, now seen corresponding path program 1 times [2022-10-17 10:40:57,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:40:57,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743717295] [2022-10-17 10:40:57,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:57,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:40:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:57,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:40:57,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743717295] [2022-10-17 10:40:57,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743717295] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:57,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:57,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:40:57,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420992142] [2022-10-17 10:40:57,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:57,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:40:57,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:40:57,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:40:57,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:57,238 INFO L87 Difference]: Start difference. First operand 2255 states and 3017 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:40:57,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:57,766 INFO L93 Difference]: Finished difference Result 3345 states and 4505 transitions. [2022-10-17 10:40:57,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:40:57,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-17 10:40:57,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:57,770 INFO L225 Difference]: With dead ends: 3345 [2022-10-17 10:40:57,770 INFO L226 Difference]: Without dead ends: 2246 [2022-10-17 10:40:57,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:40:57,773 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 257 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:57,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 811 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:40:57,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states.