./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN --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 8903dcb91a7500453f98b743541ef164d589c2f5828e51ac11fb5ea90b79c3dd --- 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-6b4ec56 [2022-11-20 10:44:43,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:44:43,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:44:43,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:44:43,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:44:43,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:44:43,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:44:43,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:44:43,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:44:43,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:44:43,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:44:43,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:44:43,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:44:43,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:44:43,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:44:43,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:44:43,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:44:43,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:44:43,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:44:43,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:44:43,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:44:43,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:44:43,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:44:43,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:44:43,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:44:43,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:44:43,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:44:43,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:44:43,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:44:43,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:44:43,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:44:43,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:44:43,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:44:43,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:44:43,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:44:43,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:44:43,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:44:43,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:44:43,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:44:43,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:44:43,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:44:43,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:44:43,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:44:43,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:44:43,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:44:43,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:44:43,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:44:43,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:44:43,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:44:43,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:44:43,611 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:44:43,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:44:43,613 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:44:43,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:44:43,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:44:43,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:44:43,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:44:43,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:44:43,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:44:43,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:44:43,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:44:43,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:44:43,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:44:43,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:44:43,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:44:43,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:44:43,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:44:43,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:44:43,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:44:43,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:44:43,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:44:43,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:44:43,618 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:44:43,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:44:43,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:44:43,619 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_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8903dcb91a7500453f98b743541ef164d589c2f5828e51ac11fb5ea90b79c3dd [2022-11-20 10:44:43,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:44:44,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:44:44,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:44:44,038 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:44:44,038 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:44:44,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-11-20 10:44:47,535 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:44:47,982 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:44:47,984 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-11-20 10:44:47,997 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/data/1cb880cf3/a381bcbf8e9f44e0b7fd65a02f597ee2/FLAG90f0b862d [2022-11-20 10:44:48,022 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/data/1cb880cf3/a381bcbf8e9f44e0b7fd65a02f597ee2 [2022-11-20 10:44:48,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:44:48,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:44:48,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:44:48,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:44:48,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:44:48,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2140cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48, skipping insertion in model container [2022-11-20 10:44:48,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:44:48,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:44:48,391 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7543,7556] [2022-11-20 10:44:48,414 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10430,10443] [2022-11-20 10:44:48,424 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11521,11534] [2022-11-20 10:44:48,430 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[12127,12140] [2022-11-20 10:44:48,442 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13546,13559] [2022-11-20 10:44:48,448 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14152,14165] [2022-11-20 10:44:48,456 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15123,15136] [2022-11-20 10:44:48,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:44:48,530 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:44:48,585 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7543,7556] [2022-11-20 10:44:48,609 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10430,10443] [2022-11-20 10:44:48,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11521,11534] [2022-11-20 10:44:48,622 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[12127,12140] [2022-11-20 10:44:48,631 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13546,13559] [2022-11-20 10:44:48,636 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14152,14165] [2022-11-20 10:44:48,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15123,15136] [2022-11-20 10:44:48,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:44:48,711 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:44:48,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48 WrapperNode [2022-11-20 10:44:48,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:44:48,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:44:48,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:44:48,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:44:48,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,828 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1018 [2022-11-20 10:44:48,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:44:48,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:44:48,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:44:48,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:44:48,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,879 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:44:48,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:44:48,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:44:48,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:44:48,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (1/1) ... [2022-11-20 10:44:48,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:44:48,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:44:48,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:44:48,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:44:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:44:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:44:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:44:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:44:49,165 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:44:49,168 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:44:50,298 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:44:50,309 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:44:50,309 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:44:50,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:44:50 BoogieIcfgContainer [2022-11-20 10:44:50,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:44:50,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:44:50,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:44:50,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:44:50,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:44:48" (1/3) ... [2022-11-20 10:44:50,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6d1d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:44:50, skipping insertion in model container [2022-11-20 10:44:50,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:48" (2/3) ... [2022-11-20 10:44:50,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6d1d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:44:50, skipping insertion in model container [2022-11-20 10:44:50,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:44:50" (3/3) ... [2022-11-20 10:44:50,325 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-11-20 10:44:50,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:44:50,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-20 10:44:50,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:44:50,426 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;@4dac65c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:44:50,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 10:44:50,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 199 states have (on average 1.8241206030150754) internal successors, (363), 206 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:50,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 10:44:50,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:50,446 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] [2022-11-20 10:44:50,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:44:50,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:50,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1485336045, now seen corresponding path program 1 times [2022-11-20 10:44:50,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:50,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613302325] [2022-11-20 10:44:50,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:50,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:51,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:51,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:51,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613302325] [2022-11-20 10:44:51,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613302325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:51,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:51,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:44:51,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987789877] [2022-11-20 10:44:51,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:51,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:44:51,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:51,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:44:51,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:44:51,279 INFO L87 Difference]: Start difference. First operand has 207 states, 199 states have (on average 1.8241206030150754) internal successors, (363), 206 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:51,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:51,578 INFO L93 Difference]: Finished difference Result 339 states and 570 transitions. [2022-11-20 10:44:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:44:51,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-11-20 10:44:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:51,594 INFO L225 Difference]: With dead ends: 339 [2022-11-20 10:44:51,595 INFO L226 Difference]: Without dead ends: 175 [2022-11-20 10:44:51,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:44:51,603 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 851 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:51,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 224 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:44:51,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-20 10:44:51,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-11-20 10:44:51,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 168 states have (on average 1.2857142857142858) internal successors, (216), 174 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:51,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 216 transitions. [2022-11-20 10:44:51,676 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 216 transitions. Word has length 47 [2022-11-20 10:44:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:51,676 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 216 transitions. [2022-11-20 10:44:51,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:51,677 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 216 transitions. [2022-11-20 10:44:51,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-20 10:44:51,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:51,680 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] [2022-11-20 10:44:51,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:44:51,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:44:51,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:51,682 INFO L85 PathProgramCache]: Analyzing trace with hash 200422799, now seen corresponding path program 1 times [2022-11-20 10:44:51,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:51,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909528550] [2022-11-20 10:44:51,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:51,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:51,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:51,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909528550] [2022-11-20 10:44:51,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909528550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:51,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:51,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:44:51,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208151524] [2022-11-20 10:44:51,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:51,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:44:51,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:51,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:44:51,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:44:51,997 INFO L87 Difference]: Start difference. First operand 175 states and 216 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:52,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:52,238 INFO L93 Difference]: Finished difference Result 298 states and 377 transitions. [2022-11-20 10:44:52,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:44:52,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-11-20 10:44:52,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:52,241 INFO L225 Difference]: With dead ends: 298 [2022-11-20 10:44:52,241 INFO L226 Difference]: Without dead ends: 162 [2022-11-20 10:44:52,242 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 [2022-11-20 10:44:52,244 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 557 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:52,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 131 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:44:52,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-20 10:44:52,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-20 10:44:52,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 155 states have (on average 1.2903225806451613) internal successors, (200), 161 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:52,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 200 transitions. [2022-11-20 10:44:52,280 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 200 transitions. Word has length 48 [2022-11-20 10:44:52,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:52,282 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 200 transitions. [2022-11-20 10:44:52,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:52,284 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 200 transitions. [2022-11-20 10:44:52,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 10:44:52,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:52,290 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] [2022-11-20 10:44:52,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:44:52,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:44:52,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:52,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2021523794, now seen corresponding path program 1 times [2022-11-20 10:44:52,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:52,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123281617] [2022-11-20 10:44:52,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:52,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:52,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:52,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123281617] [2022-11-20 10:44:52,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123281617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:52,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:52,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:44:52,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056157656] [2022-11-20 10:44:52,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:52,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:44:52,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:52,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:44:52,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:44:52,539 INFO L87 Difference]: Start difference. First operand 162 states and 200 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:52,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:52,763 INFO L93 Difference]: Finished difference Result 285 states and 360 transitions. [2022-11-20 10:44:52,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:44:52,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-11-20 10:44:52,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:52,766 INFO L225 Difference]: With dead ends: 285 [2022-11-20 10:44:52,767 INFO L226 Difference]: Without dead ends: 157 [2022-11-20 10:44:52,768 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 [2022-11-20 10:44:52,770 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 523 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:52,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 128 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:44:52,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-20 10:44:52,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-11-20 10:44:52,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 156 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 193 transitions. [2022-11-20 10:44:52,789 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 193 transitions. Word has length 49 [2022-11-20 10:44:52,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:52,790 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 193 transitions. [2022-11-20 10:44:52,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:52,791 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 193 transitions. [2022-11-20 10:44:52,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-20 10:44:52,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:52,798 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] [2022-11-20 10:44:52,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:44:52,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:44:52,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:52,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1243075504, now seen corresponding path program 1 times [2022-11-20 10:44:52,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:52,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282827021] [2022-11-20 10:44:52,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:52,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:53,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:53,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:53,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282827021] [2022-11-20 10:44:53,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282827021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:53,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:53,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:44:53,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545556146] [2022-11-20 10:44:53,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:53,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:44:53,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:53,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:44:53,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:44:53,373 INFO L87 Difference]: Start difference. First operand 157 states and 193 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:54,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:54,227 INFO L93 Difference]: Finished difference Result 332 states and 431 transitions. [2022-11-20 10:44:54,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 10:44:54,228 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-11-20 10:44:54,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:54,233 INFO L225 Difference]: With dead ends: 332 [2022-11-20 10:44:54,233 INFO L226 Difference]: Without dead ends: 327 [2022-11-20 10:44:54,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-20 10:44:54,245 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 1239 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:54,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 607 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:44:54,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-20 10:44:54,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 157. [2022-11-20 10:44:54,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.28) internal successors, (192), 156 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:54,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2022-11-20 10:44:54,296 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 50 [2022-11-20 10:44:54,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:54,296 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2022-11-20 10:44:54,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:54,297 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2022-11-20 10:44:54,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-20 10:44:54,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:54,303 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] [2022-11-20 10:44:54,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:44:54,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:44:54,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:54,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1139694690, now seen corresponding path program 1 times [2022-11-20 10:44:54,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:54,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350028493] [2022-11-20 10:44:54,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:54,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:54,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:54,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350028493] [2022-11-20 10:44:54,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350028493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:54,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:54,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:44:54,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796498222] [2022-11-20 10:44:54,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:54,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:44:54,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:54,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:44:54,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:44:54,685 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:55,580 INFO L93 Difference]: Finished difference Result 391 states and 514 transitions. [2022-11-20 10:44:55,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 10:44:55,581 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-11-20 10:44:55,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:55,583 INFO L225 Difference]: With dead ends: 391 [2022-11-20 10:44:55,583 INFO L226 Difference]: Without dead ends: 331 [2022-11-20 10:44:55,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:44:55,584 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1061 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:55,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 810 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:44:55,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-11-20 10:44:55,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 157. [2022-11-20 10:44:55,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.2733333333333334) internal successors, (191), 156 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:55,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 191 transitions. [2022-11-20 10:44:55,631 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 191 transitions. Word has length 50 [2022-11-20 10:44:55,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:55,635 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 191 transitions. [2022-11-20 10:44:55,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:55,635 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 191 transitions. [2022-11-20 10:44:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-20 10:44:55,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:55,638 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] [2022-11-20 10:44:55,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:44:55,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:44:55,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:55,639 INFO L85 PathProgramCache]: Analyzing trace with hash 134088220, now seen corresponding path program 1 times [2022-11-20 10:44:55,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:55,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443964383] [2022-11-20 10:44:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:55,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:55,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:55,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:55,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443964383] [2022-11-20 10:44:55,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443964383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:55,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:55,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:44:55,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587326942] [2022-11-20 10:44:55,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:55,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:44:55,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:55,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:44:55,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:44:55,957 INFO L87 Difference]: Start difference. First operand 157 states and 191 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:56,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:56,381 INFO L93 Difference]: Finished difference Result 312 states and 389 transitions. [2022-11-20 10:44:56,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:44:56,382 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-11-20 10:44:56,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:56,384 INFO L225 Difference]: With dead ends: 312 [2022-11-20 10:44:56,384 INFO L226 Difference]: Without dead ends: 229 [2022-11-20 10:44:56,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:44:56,386 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 1024 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:56,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 307 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:44:56,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-11-20 10:44:56,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 157. [2022-11-20 10:44:56,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.2666666666666666) internal successors, (190), 156 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:56,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 190 transitions. [2022-11-20 10:44:56,425 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 190 transitions. Word has length 50 [2022-11-20 10:44:56,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:56,426 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 190 transitions. [2022-11-20 10:44:56,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:56,426 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 190 transitions. [2022-11-20 10:44:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 10:44:56,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:56,427 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] [2022-11-20 10:44:56,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:44:56,428 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:44:56,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:56,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1263855603, now seen corresponding path program 1 times [2022-11-20 10:44:56,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:56,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113097340] [2022-11-20 10:44:56,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:56,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:57,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:57,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:57,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113097340] [2022-11-20 10:44:57,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113097340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:57,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:57,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:44:57,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375649888] [2022-11-20 10:44:57,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:57,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:44:57,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:57,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:44:57,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:44:57,150 INFO L87 Difference]: Start difference. First operand 157 states and 190 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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) [2022-11-20 10:44:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:58,091 INFO L93 Difference]: Finished difference Result 292 states and 367 transitions. [2022-11-20 10:44:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:44:58,092 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 [2022-11-20 10:44:58,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:58,094 INFO L225 Difference]: With dead ends: 292 [2022-11-20 10:44:58,094 INFO L226 Difference]: Without dead ends: 245 [2022-11-20 10:44:58,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-20 10:44:58,096 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1081 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:58,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 885 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:44:58,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-11-20 10:44:58,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 153. [2022-11-20 10:44:58,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 147 states have (on average 1.2585034013605443) internal successors, (185), 152 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:58,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 185 transitions. [2022-11-20 10:44:58,136 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 185 transitions. Word has length 52 [2022-11-20 10:44:58,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:58,136 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 185 transitions. [2022-11-20 10:44:58,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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) [2022-11-20 10:44:58,137 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 185 transitions. [2022-11-20 10:44:58,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 10:44:58,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:58,138 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] [2022-11-20 10:44:58,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:44:58,138 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:44:58,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:58,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1250594545, now seen corresponding path program 1 times [2022-11-20 10:44:58,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:58,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595022510] [2022-11-20 10:44:58,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:58,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:58,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:58,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595022510] [2022-11-20 10:44:58,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595022510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:58,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:58,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:44:58,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767453282] [2022-11-20 10:44:58,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:58,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:44:58,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:58,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:44:58,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:44:58,881 INFO L87 Difference]: Start difference. First operand 153 states and 185 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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) [2022-11-20 10:44:59,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:59,743 INFO L93 Difference]: Finished difference Result 294 states and 373 transitions. [2022-11-20 10:44:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:44:59,747 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 [2022-11-20 10:44:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:59,748 INFO L225 Difference]: With dead ends: 294 [2022-11-20 10:44:59,749 INFO L226 Difference]: Without dead ends: 240 [2022-11-20 10:44:59,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:44:59,751 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 706 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:59,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1444 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:44:59,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-11-20 10:44:59,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 142. [2022-11-20 10:44:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 137 states have (on average 1.2554744525547445) internal successors, (172), 141 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:59,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2022-11-20 10:44:59,796 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 52 [2022-11-20 10:44:59,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:59,797 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2022-11-20 10:44:59,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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) [2022-11-20 10:44:59,797 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2022-11-20 10:44:59,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 10:44:59,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:59,798 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] [2022-11-20 10:44:59,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:44:59,799 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:44:59,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:59,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1706910886, now seen corresponding path program 1 times [2022-11-20 10:44:59,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:59,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117434458] [2022-11-20 10:44:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:59,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:00,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:00,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117434458] [2022-11-20 10:45:00,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117434458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:00,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:00,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:45:00,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169870445] [2022-11-20 10:45:00,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:00,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:45:00,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:00,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:45:00,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:45:00,500 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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) [2022-11-20 10:45:01,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:01,382 INFO L93 Difference]: Finished difference Result 226 states and 278 transitions. [2022-11-20 10:45:01,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:45:01,383 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 [2022-11-20 10:45:01,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:01,384 INFO L225 Difference]: With dead ends: 226 [2022-11-20 10:45:01,384 INFO L226 Difference]: Without dead ends: 222 [2022-11-20 10:45:01,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:45:01,386 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 854 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:01,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 916 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:45:01,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-20 10:45:01,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 138. [2022-11-20 10:45:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 134 states have (on average 1.2537313432835822) internal successors, (168), 137 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:01,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 168 transitions. [2022-11-20 10:45:01,430 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 168 transitions. Word has length 52 [2022-11-20 10:45:01,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:01,431 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 168 transitions. [2022-11-20 10:45:01,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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) [2022-11-20 10:45:01,431 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 168 transitions. [2022-11-20 10:45:01,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:45:01,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:01,432 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] [2022-11-20 10:45:01,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:45:01,433 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:01,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:01,433 INFO L85 PathProgramCache]: Analyzing trace with hash 190692674, now seen corresponding path program 1 times [2022-11-20 10:45:01,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:01,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349496001] [2022-11-20 10:45:01,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:01,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:01,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:01,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349496001] [2022-11-20 10:45:01,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349496001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:01,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:01,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:45:01,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411806311] [2022-11-20 10:45:01,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:01,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:45:01,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:01,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:45:01,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:45:01,964 INFO L87 Difference]: Start difference. First operand 138 states and 168 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 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) [2022-11-20 10:45:03,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:03,291 INFO L93 Difference]: Finished difference Result 350 states and 453 transitions. [2022-11-20 10:45:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 10:45:03,291 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 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 [2022-11-20 10:45:03,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:03,293 INFO L225 Difference]: With dead ends: 350 [2022-11-20 10:45:03,293 INFO L226 Difference]: Without dead ends: 343 [2022-11-20 10:45:03,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-11-20 10:45:03,295 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 2265 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:03,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 582 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:45:03,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-11-20 10:45:03,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 142. [2022-11-20 10:45:03,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.2463768115942029) internal successors, (172), 141 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:03,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2022-11-20 10:45:03,352 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 53 [2022-11-20 10:45:03,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:03,352 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2022-11-20 10:45:03,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 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) [2022-11-20 10:45:03,353 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2022-11-20 10:45:03,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:45:03,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:03,353 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] [2022-11-20 10:45:03,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:45:03,355 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:03,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:03,355 INFO L85 PathProgramCache]: Analyzing trace with hash -659119293, now seen corresponding path program 1 times [2022-11-20 10:45:03,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:03,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403339315] [2022-11-20 10:45:03,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:03,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:03,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:03,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403339315] [2022-11-20 10:45:03,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403339315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:03,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:03,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:45:03,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742760497] [2022-11-20 10:45:03,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:03,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:45:03,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:03,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:45:03,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:45:03,720 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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) [2022-11-20 10:45:04,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:04,273 INFO L93 Difference]: Finished difference Result 223 states and 274 transitions. [2022-11-20 10:45:04,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:45:04,273 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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 [2022-11-20 10:45:04,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:04,275 INFO L225 Difference]: With dead ends: 223 [2022-11-20 10:45:04,275 INFO L226 Difference]: Without dead ends: 216 [2022-11-20 10:45:04,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:45:04,276 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 953 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:04,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 424 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:45:04,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-20 10:45:04,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 142. [2022-11-20 10:45:04,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.2391304347826086) internal successors, (171), 141 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 171 transitions. [2022-11-20 10:45:04,319 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 171 transitions. Word has length 53 [2022-11-20 10:45:04,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:04,319 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 171 transitions. [2022-11-20 10:45:04,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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) [2022-11-20 10:45:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 171 transitions. [2022-11-20 10:45:04,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:45:04,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:04,320 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] [2022-11-20 10:45:04,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:45:04,321 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:04,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:04,321 INFO L85 PathProgramCache]: Analyzing trace with hash 339917441, now seen corresponding path program 1 times [2022-11-20 10:45:04,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:04,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848603726] [2022-11-20 10:45:04,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:04,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:04,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:04,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848603726] [2022-11-20 10:45:04,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848603726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:04,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:04,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:45:04,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433343368] [2022-11-20 10:45:04,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:04,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:45:04,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:04,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:45:04,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:45:04,577 INFO L87 Difference]: Start difference. First operand 142 states and 171 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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) [2022-11-20 10:45:05,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:05,081 INFO L93 Difference]: Finished difference Result 285 states and 361 transitions. [2022-11-20 10:45:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:45:05,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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 [2022-11-20 10:45:05,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:05,083 INFO L225 Difference]: With dead ends: 285 [2022-11-20 10:45:05,083 INFO L226 Difference]: Without dead ends: 224 [2022-11-20 10:45:05,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:45:05,084 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 607 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:05,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 539 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:45:05,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-11-20 10:45:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 142. [2022-11-20 10:45:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.2318840579710144) internal successors, (170), 141 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 170 transitions. [2022-11-20 10:45:05,140 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 170 transitions. Word has length 53 [2022-11-20 10:45:05,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:05,141 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 170 transitions. [2022-11-20 10:45:05,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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) [2022-11-20 10:45:05,141 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 170 transitions. [2022-11-20 10:45:05,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-20 10:45:05,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:05,147 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] [2022-11-20 10:45:05,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:45:05,147 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:05,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:05,148 INFO L85 PathProgramCache]: Analyzing trace with hash -746268687, now seen corresponding path program 1 times [2022-11-20 10:45:05,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:05,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092680266] [2022-11-20 10:45:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:05,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:05,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:05,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092680266] [2022-11-20 10:45:05,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092680266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:05,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:05,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:45:05,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669589844] [2022-11-20 10:45:05,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:05,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:45:05,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:05,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:45:05,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:45:05,360 INFO L87 Difference]: Start difference. First operand 142 states and 170 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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) [2022-11-20 10:45:05,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:05,846 INFO L93 Difference]: Finished difference Result 223 states and 272 transitions. [2022-11-20 10:45:05,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:45:05,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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 [2022-11-20 10:45:05,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:05,848 INFO L225 Difference]: With dead ends: 223 [2022-11-20 10:45:05,849 INFO L226 Difference]: Without dead ends: 216 [2022-11-20 10:45:05,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:45:05,850 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 516 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:05,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 625 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:45:05,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-20 10:45:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 138. [2022-11-20 10:45:05,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 137 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:05,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 165 transitions. [2022-11-20 10:45:05,904 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 165 transitions. Word has length 54 [2022-11-20 10:45:05,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:05,904 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 165 transitions. [2022-11-20 10:45:05,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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) [2022-11-20 10:45:05,905 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 165 transitions. [2022-11-20 10:45:05,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 10:45:05,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:05,905 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] [2022-11-20 10:45:05,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:45:05,906 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:05,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:05,907 INFO L85 PathProgramCache]: Analyzing trace with hash -11876974, now seen corresponding path program 1 times [2022-11-20 10:45:05,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:05,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926700089] [2022-11-20 10:45:05,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:05,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:06,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:06,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926700089] [2022-11-20 10:45:06,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926700089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:06,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:06,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:45:06,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097127323] [2022-11-20 10:45:06,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:06,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:45:06,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:06,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:45:06,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:45:06,744 INFO L87 Difference]: Start difference. First operand 138 states and 165 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 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) [2022-11-20 10:45:09,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:09,027 INFO L93 Difference]: Finished difference Result 368 states and 458 transitions. [2022-11-20 10:45:09,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 10:45:09,028 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 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 [2022-11-20 10:45:09,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:09,031 INFO L225 Difference]: With dead ends: 368 [2022-11-20 10:45:09,031 INFO L226 Difference]: Without dead ends: 360 [2022-11-20 10:45:09,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2022-11-20 10:45:09,033 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1110 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:09,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 2935 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 10:45:09,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-20 10:45:09,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 143. [2022-11-20 10:45:09,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 139 states have (on average 1.223021582733813) internal successors, (170), 142 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:09,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2022-11-20 10:45:09,092 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 55 [2022-11-20 10:45:09,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:09,093 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2022-11-20 10:45:09,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 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) [2022-11-20 10:45:09,093 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2022-11-20 10:45:09,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 10:45:09,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:09,094 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] [2022-11-20 10:45:09,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:45:09,095 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:09,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:09,096 INFO L85 PathProgramCache]: Analyzing trace with hash -637393645, now seen corresponding path program 1 times [2022-11-20 10:45:09,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:09,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748596803] [2022-11-20 10:45:09,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:09,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:10,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:10,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748596803] [2022-11-20 10:45:10,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748596803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:10,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:10,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:45:10,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216488310] [2022-11-20 10:45:10,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:10,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:45:10,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:10,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:45:10,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:45:10,445 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 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) [2022-11-20 10:45:12,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:12,706 INFO L93 Difference]: Finished difference Result 371 states and 460 transitions. [2022-11-20 10:45:12,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 10:45:12,707 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 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 [2022-11-20 10:45:12,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:12,708 INFO L225 Difference]: With dead ends: 371 [2022-11-20 10:45:12,709 INFO L226 Difference]: Without dead ends: 363 [2022-11-20 10:45:12,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=228, Invalid=894, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 10:45:12,710 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 982 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:12,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 2407 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 10:45:12,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-20 10:45:12,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 152. [2022-11-20 10:45:12,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 148 states have (on average 1.222972972972973) internal successors, (181), 151 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:12,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 181 transitions. [2022-11-20 10:45:12,783 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 181 transitions. Word has length 55 [2022-11-20 10:45:12,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:12,784 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 181 transitions. [2022-11-20 10:45:12,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 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) [2022-11-20 10:45:12,784 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 181 transitions. [2022-11-20 10:45:12,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 10:45:12,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:12,785 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] [2022-11-20 10:45:12,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:45:12,786 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:12,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:12,786 INFO L85 PathProgramCache]: Analyzing trace with hash -824240014, now seen corresponding path program 1 times [2022-11-20 10:45:12,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:12,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560601243] [2022-11-20 10:45:12,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:12,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:13,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:13,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560601243] [2022-11-20 10:45:13,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560601243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:13,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:13,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:45:13,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821324166] [2022-11-20 10:45:13,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:13,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:45:13,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:13,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:45:13,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:45:13,455 INFO L87 Difference]: Start difference. First operand 152 states and 181 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 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) [2022-11-20 10:45:14,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:14,575 INFO L93 Difference]: Finished difference Result 317 states and 408 transitions. [2022-11-20 10:45:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:45:14,576 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 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 [2022-11-20 10:45:14,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:14,578 INFO L225 Difference]: With dead ends: 317 [2022-11-20 10:45:14,578 INFO L226 Difference]: Without dead ends: 311 [2022-11-20 10:45:14,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-20 10:45:14,579 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 905 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:14,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1339 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:45:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-11-20 10:45:14,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 146. [2022-11-20 10:45:14,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 143 states have (on average 1.2237762237762237) internal successors, (175), 145 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:14,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 175 transitions. [2022-11-20 10:45:14,644 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 175 transitions. Word has length 55 [2022-11-20 10:45:14,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:14,644 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 175 transitions. [2022-11-20 10:45:14,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 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) [2022-11-20 10:45:14,645 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 175 transitions. [2022-11-20 10:45:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-20 10:45:14,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:14,646 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] [2022-11-20 10:45:14,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 10:45:14,646 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:14,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:14,647 INFO L85 PathProgramCache]: Analyzing trace with hash -808849069, now seen corresponding path program 1 times [2022-11-20 10:45:14,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:14,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582113666] [2022-11-20 10:45:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:14,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:15,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:15,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:15,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582113666] [2022-11-20 10:45:15,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582113666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:15,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:15,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:45:15,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959548659] [2022-11-20 10:45:15,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:15,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:45:15,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:15,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:45:15,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:45:15,244 INFO L87 Difference]: Start difference. First operand 146 states and 175 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 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) [2022-11-20 10:45:16,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:16,454 INFO L93 Difference]: Finished difference Result 314 states and 409 transitions. [2022-11-20 10:45:16,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:45:16,455 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 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 [2022-11-20 10:45:16,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:16,457 INFO L225 Difference]: With dead ends: 314 [2022-11-20 10:45:16,457 INFO L226 Difference]: Without dead ends: 299 [2022-11-20 10:45:16,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:45:16,461 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 442 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:16,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 2013 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:45:16,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-11-20 10:45:16,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 125. [2022-11-20 10:45:16,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 123 states have (on average 1.2276422764227641) internal successors, (151), 124 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:16,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 151 transitions. [2022-11-20 10:45:16,525 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 151 transitions. Word has length 56 [2022-11-20 10:45:16,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:16,525 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 151 transitions. [2022-11-20 10:45:16,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 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) [2022-11-20 10:45:16,526 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 151 transitions. [2022-11-20 10:45:16,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-20 10:45:16,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:16,527 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] [2022-11-20 10:45:16,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 10:45:16,527 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:16,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:16,528 INFO L85 PathProgramCache]: Analyzing trace with hash 623432965, now seen corresponding path program 1 times [2022-11-20 10:45:16,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:16,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495588329] [2022-11-20 10:45:16,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:16,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:17,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:17,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:17,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495588329] [2022-11-20 10:45:17,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495588329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:17,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:17,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 10:45:17,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716092313] [2022-11-20 10:45:17,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:17,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:45:17,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:17,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:45:17,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:45:17,443 INFO L87 Difference]: Start difference. First operand 125 states and 151 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 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) [2022-11-20 10:45:19,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:19,326 INFO L93 Difference]: Finished difference Result 254 states and 321 transitions. [2022-11-20 10:45:19,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 10:45:19,327 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 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 [2022-11-20 10:45:19,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:19,329 INFO L225 Difference]: With dead ends: 254 [2022-11-20 10:45:19,329 INFO L226 Difference]: Without dead ends: 240 [2022-11-20 10:45:19,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-11-20 10:45:19,330 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 694 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:19,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1409 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:45:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-11-20 10:45:19,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 120. [2022-11-20 10:45:19,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 118 states have (on average 1.228813559322034) internal successors, (145), 119 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:19,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 145 transitions. [2022-11-20 10:45:19,399 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 145 transitions. Word has length 56 [2022-11-20 10:45:19,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:19,399 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 145 transitions. [2022-11-20 10:45:19,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 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) [2022-11-20 10:45:19,400 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 145 transitions. [2022-11-20 10:45:19,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-20 10:45:19,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:19,401 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] [2022-11-20 10:45:19,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 10:45:19,401 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:19,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:19,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1511387265, now seen corresponding path program 1 times [2022-11-20 10:45:19,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:19,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083028362] [2022-11-20 10:45:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:19,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:19,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:19,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083028362] [2022-11-20 10:45:19,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083028362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:19,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:19,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:45:19,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505865552] [2022-11-20 10:45:19,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:19,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:45:19,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:19,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:45:19,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:45:19,956 INFO L87 Difference]: Start difference. First operand 120 states and 145 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 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) [2022-11-20 10:45:21,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:21,185 INFO L93 Difference]: Finished difference Result 368 states and 496 transitions. [2022-11-20 10:45:21,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:45:21,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 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 [2022-11-20 10:45:21,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:21,188 INFO L225 Difference]: With dead ends: 368 [2022-11-20 10:45:21,188 INFO L226 Difference]: Without dead ends: 350 [2022-11-20 10:45:21,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-11-20 10:45:21,190 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 993 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:21,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 947 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:45:21,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-11-20 10:45:21,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 102. [2022-11-20 10:45:21,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.2475247524752475) internal successors, (126), 101 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:21,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 126 transitions. [2022-11-20 10:45:21,295 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 126 transitions. Word has length 56 [2022-11-20 10:45:21,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:21,296 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 126 transitions. [2022-11-20 10:45:21,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 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) [2022-11-20 10:45:21,297 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 126 transitions. [2022-11-20 10:45:21,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-20 10:45:21,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:21,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:21,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 10:45:21,299 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:21,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:21,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2042294308, now seen corresponding path program 1 times [2022-11-20 10:45:21,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:21,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432596933] [2022-11-20 10:45:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:21,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:21,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:21,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:21,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432596933] [2022-11-20 10:45:21,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432596933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:21,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:21,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:21,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028430338] [2022-11-20 10:45:21,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:21,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:45:21,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:21,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:45:21,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:45:21,433 INFO L87 Difference]: Start difference. First operand 102 states and 126 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:21,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:21,858 INFO L93 Difference]: Finished difference Result 360 states and 504 transitions. [2022-11-20 10:45:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:45:21,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-20 10:45:21,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:21,861 INFO L225 Difference]: With dead ends: 360 [2022-11-20 10:45:21,861 INFO L226 Difference]: Without dead ends: 317 [2022-11-20 10:45:21,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:45:21,863 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 479 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:21,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 599 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:45:21,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-11-20 10:45:21,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 143. [2022-11-20 10:45:22,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.3098591549295775) internal successors, (186), 142 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:22,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 186 transitions. [2022-11-20 10:45:22,001 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 186 transitions. Word has length 73 [2022-11-20 10:45:22,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:22,001 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 186 transitions. [2022-11-20 10:45:22,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 186 transitions. [2022-11-20 10:45:22,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 10:45:22,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:22,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:22,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 10:45:22,004 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:22,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:22,004 INFO L85 PathProgramCache]: Analyzing trace with hash -786943772, now seen corresponding path program 1 times [2022-11-20 10:45:22,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:22,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265865660] [2022-11-20 10:45:22,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:22,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:22,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:22,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:22,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265865660] [2022-11-20 10:45:22,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265865660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:22,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:22,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:22,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462301989] [2022-11-20 10:45:22,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:22,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:45:22,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:22,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:45:22,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:45:22,120 INFO L87 Difference]: Start difference. First operand 143 states and 186 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:22,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:22,554 INFO L93 Difference]: Finished difference Result 438 states and 616 transitions. [2022-11-20 10:45:22,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:45:22,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-20 10:45:22,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:22,557 INFO L225 Difference]: With dead ends: 438 [2022-11-20 10:45:22,557 INFO L226 Difference]: Without dead ends: 354 [2022-11-20 10:45:22,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:45:22,558 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 281 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:22,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 419 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:45:22,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-20 10:45:22,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 225. [2022-11-20 10:45:22,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.3705357142857142) internal successors, (307), 224 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:22,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 307 transitions. [2022-11-20 10:45:22,794 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 307 transitions. Word has length 75 [2022-11-20 10:45:22,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:22,794 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 307 transitions. [2022-11-20 10:45:22,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:22,795 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 307 transitions. [2022-11-20 10:45:22,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 10:45:22,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:22,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:22,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 10:45:22,797 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:22,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:22,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1322322984, now seen corresponding path program 1 times [2022-11-20 10:45:22,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:22,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730927846] [2022-11-20 10:45:22,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:22,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:22,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:22,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:22,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730927846] [2022-11-20 10:45:22,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730927846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:22,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:22,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:22,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140661432] [2022-11-20 10:45:22,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:22,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:45:22,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:22,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:45:22,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:45:22,917 INFO L87 Difference]: Start difference. First operand 225 states and 307 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:23,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:23,470 INFO L93 Difference]: Finished difference Result 520 states and 737 transitions. [2022-11-20 10:45:23,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:45:23,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-20 10:45:23,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:23,474 INFO L225 Difference]: With dead ends: 520 [2022-11-20 10:45:23,474 INFO L226 Difference]: Without dead ends: 436 [2022-11-20 10:45:23,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:45:23,476 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 291 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:23,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 430 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:45:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-11-20 10:45:23,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 348. [2022-11-20 10:45:23,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.4063400576368876) internal successors, (488), 347 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:23,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 488 transitions. [2022-11-20 10:45:23,826 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 488 transitions. Word has length 75 [2022-11-20 10:45:23,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:23,827 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 488 transitions. [2022-11-20 10:45:23,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:23,827 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 488 transitions. [2022-11-20 10:45:23,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 10:45:23,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:23,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:23,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 10:45:23,829 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:23,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1446907099, now seen corresponding path program 1 times [2022-11-20 10:45:23,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:23,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982215415] [2022-11-20 10:45:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:23,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:23,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:23,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982215415] [2022-11-20 10:45:23,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982215415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:23,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:23,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:45:23,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906308928] [2022-11-20 10:45:23,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:23,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:23,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:23,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:23,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:23,907 INFO L87 Difference]: Start difference. First operand 348 states and 488 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:24,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:24,366 INFO L93 Difference]: Finished difference Result 639 states and 914 transitions. [2022-11-20 10:45:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:24,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-20 10:45:24,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:24,370 INFO L225 Difference]: With dead ends: 639 [2022-11-20 10:45:24,370 INFO L226 Difference]: Without dead ends: 350 [2022-11-20 10:45:24,371 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 [2022-11-20 10:45:24,372 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 50 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:24,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 200 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:45:24,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-11-20 10:45:24,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2022-11-20 10:45:24,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.3948126801152738) internal successors, (484), 347 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:24,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 484 transitions. [2022-11-20 10:45:24,738 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 484 transitions. Word has length 75 [2022-11-20 10:45:24,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:24,739 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 484 transitions. [2022-11-20 10:45:24,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:24,740 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 484 transitions. [2022-11-20 10:45:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 10:45:24,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:24,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:24,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 10:45:24,741 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:24,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:24,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2078767204, now seen corresponding path program 1 times [2022-11-20 10:45:24,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:24,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543413346] [2022-11-20 10:45:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:24,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:24,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:24,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:24,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543413346] [2022-11-20 10:45:24,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543413346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:24,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:24,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:45:24,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248930836] [2022-11-20 10:45:24,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:24,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:24,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:24,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:24,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:24,796 INFO L87 Difference]: Start difference. First operand 348 states and 484 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:25,400 INFO L93 Difference]: Finished difference Result 881 states and 1251 transitions. [2022-11-20 10:45:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:25,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-20 10:45:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:25,404 INFO L225 Difference]: With dead ends: 881 [2022-11-20 10:45:25,404 INFO L226 Difference]: Without dead ends: 592 [2022-11-20 10:45:25,405 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 [2022-11-20 10:45:25,406 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 50 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:25,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 283 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:45:25,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-11-20 10:45:25,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 590. [2022-11-20 10:45:25,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 589 states have (on average 1.3837011884550086) internal successors, (815), 589 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 815 transitions. [2022-11-20 10:45:25,969 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 815 transitions. Word has length 75 [2022-11-20 10:45:25,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:25,969 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 815 transitions. [2022-11-20 10:45:25,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:25,970 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 815 transitions. [2022-11-20 10:45:25,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 10:45:25,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:25,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:25,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 10:45:25,972 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:25,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:25,973 INFO L85 PathProgramCache]: Analyzing trace with hash 95104542, now seen corresponding path program 1 times [2022-11-20 10:45:25,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:25,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927910700] [2022-11-20 10:45:25,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:25,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:26,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:26,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:26,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927910700] [2022-11-20 10:45:26,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927910700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:26,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:26,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:26,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391936092] [2022-11-20 10:45:26,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:26,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:45:26,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:26,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:45:26,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:45:26,085 INFO L87 Difference]: Start difference. First operand 590 states and 815 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:27,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:27,010 INFO L93 Difference]: Finished difference Result 1051 states and 1467 transitions. [2022-11-20 10:45:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:45:27,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-20 10:45:27,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:27,014 INFO L225 Difference]: With dead ends: 1051 [2022-11-20 10:45:27,015 INFO L226 Difference]: Without dead ends: 898 [2022-11-20 10:45:27,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:45:27,016 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 283 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:27,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 461 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:45:27,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-11-20 10:45:27,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 741. [2022-11-20 10:45:27,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 1.3905405405405404) internal successors, (1029), 740 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:27,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1029 transitions. [2022-11-20 10:45:27,557 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1029 transitions. Word has length 75 [2022-11-20 10:45:27,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:27,557 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 1029 transitions. [2022-11-20 10:45:27,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:27,558 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1029 transitions. [2022-11-20 10:45:27,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 10:45:27,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:27,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:27,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 10:45:27,560 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:27,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:27,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1963614716, now seen corresponding path program 1 times [2022-11-20 10:45:27,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:27,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121292624] [2022-11-20 10:45:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:27,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:27,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:27,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:27,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121292624] [2022-11-20 10:45:27,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121292624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:27,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:27,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:45:27,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134919008] [2022-11-20 10:45:27,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:27,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:27,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:27,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:27,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:27,672 INFO L87 Difference]: Start difference. First operand 741 states and 1029 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:28,957 INFO L93 Difference]: Finished difference Result 1862 states and 2600 transitions. [2022-11-20 10:45:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-11-20 10:45:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:28,963 INFO L225 Difference]: With dead ends: 1862 [2022-11-20 10:45:28,963 INFO L226 Difference]: Without dead ends: 1180 [2022-11-20 10:45:28,964 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 [2022-11-20 10:45:28,965 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 59 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:28,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 266 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:45:28,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-11-20 10:45:29,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1106. [2022-11-20 10:45:29,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1105 states have (on average 1.3800904977375565) internal successors, (1525), 1105 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:29,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1525 transitions. [2022-11-20 10:45:29,885 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1525 transitions. Word has length 76 [2022-11-20 10:45:29,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:29,885 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 1525 transitions. [2022-11-20 10:45:29,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:29,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1525 transitions. [2022-11-20 10:45:29,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 10:45:29,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:29,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:29,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 10:45:29,888 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:29,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:29,888 INFO L85 PathProgramCache]: Analyzing trace with hash -628172474, now seen corresponding path program 1 times [2022-11-20 10:45:29,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:29,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048433336] [2022-11-20 10:45:29,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:29,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:29,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:29,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:29,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048433336] [2022-11-20 10:45:29,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048433336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:29,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:29,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:45:29,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123189047] [2022-11-20 10:45:29,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:29,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:29,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:29,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:29,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:29,998 INFO L87 Difference]: Start difference. First operand 1106 states and 1525 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:32,026 INFO L93 Difference]: Finished difference Result 3092 states and 4260 transitions. [2022-11-20 10:45:32,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:32,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-20 10:45:32,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:32,035 INFO L225 Difference]: With dead ends: 3092 [2022-11-20 10:45:32,036 INFO L226 Difference]: Without dead ends: 2045 [2022-11-20 10:45:32,038 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 [2022-11-20 10:45:32,039 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 52 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:32,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 265 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:45:32,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2022-11-20 10:45:33,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1935. [2022-11-20 10:45:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1934 states have (on average 1.3624612202688728) internal successors, (2635), 1934 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2635 transitions. [2022-11-20 10:45:33,596 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2635 transitions. Word has length 77 [2022-11-20 10:45:33,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:33,597 INFO L495 AbstractCegarLoop]: Abstraction has 1935 states and 2635 transitions. [2022-11-20 10:45:33,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:33,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2635 transitions. [2022-11-20 10:45:33,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 10:45:33,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:33,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:33,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 10:45:33,599 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:33,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:33,600 INFO L85 PathProgramCache]: Analyzing trace with hash -763788569, now seen corresponding path program 1 times [2022-11-20 10:45:33,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:33,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817192896] [2022-11-20 10:45:33,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:33,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:33,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:33,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817192896] [2022-11-20 10:45:33,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817192896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:33,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:33,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:45:33,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282957335] [2022-11-20 10:45:33,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:33,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:33,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:33,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:33,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:33,709 INFO L87 Difference]: Start difference. First operand 1935 states and 2635 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:36,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:36,660 INFO L93 Difference]: Finished difference Result 5471 states and 7401 transitions. [2022-11-20 10:45:36,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:36,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-20 10:45:36,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:36,673 INFO L225 Difference]: With dead ends: 5471 [2022-11-20 10:45:36,673 INFO L226 Difference]: Without dead ends: 3595 [2022-11-20 10:45:36,677 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 [2022-11-20 10:45:36,677 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 42 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:36,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 263 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:45:36,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2022-11-20 10:45:39,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3377. [2022-11-20 10:45:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 3376 states have (on average 1.3341232227488151) internal successors, (4504), 3376 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:39,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 4504 transitions. [2022-11-20 10:45:39,983 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 4504 transitions. Word has length 78 [2022-11-20 10:45:39,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:39,984 INFO L495 AbstractCegarLoop]: Abstraction has 3377 states and 4504 transitions. [2022-11-20 10:45:39,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:39,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 4504 transitions. [2022-11-20 10:45:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-20 10:45:39,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:39,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:39,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 10:45:39,986 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:39,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:39,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1461539563, now seen corresponding path program 1 times [2022-11-20 10:45:39,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:39,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816628237] [2022-11-20 10:45:39,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:39,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:40,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:40,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:40,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816628237] [2022-11-20 10:45:40,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816628237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:40,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:40,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:45:40,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006151546] [2022-11-20 10:45:40,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:40,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:45:40,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:40,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:45:40,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:45:40,226 INFO L87 Difference]: Start difference. First operand 3377 states and 4504 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:45,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:45,508 INFO L93 Difference]: Finished difference Result 5221 states and 6939 transitions. [2022-11-20 10:45:45,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:45:45,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-20 10:45:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:45,526 INFO L225 Difference]: With dead ends: 5221 [2022-11-20 10:45:45,526 INFO L226 Difference]: Without dead ends: 5219 [2022-11-20 10:45:45,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:45:45,529 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 201 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:45,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 629 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:45:45,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5219 states. [2022-11-20 10:45:48,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5219 to 3473. [2022-11-20 10:45:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3473 states, 3472 states have (on average 1.3133640552995391) internal successors, (4560), 3472 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:48,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3473 states to 3473 states and 4560 transitions. [2022-11-20 10:45:48,477 INFO L78 Accepts]: Start accepts. Automaton has 3473 states and 4560 transitions. Word has length 79 [2022-11-20 10:45:48,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:48,477 INFO L495 AbstractCegarLoop]: Abstraction has 3473 states and 4560 transitions. [2022-11-20 10:45:48,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:48,478 INFO L276 IsEmpty]: Start isEmpty. Operand 3473 states and 4560 transitions. [2022-11-20 10:45:48,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-20 10:45:48,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:48,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:48,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 10:45:48,479 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:48,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:48,480 INFO L85 PathProgramCache]: Analyzing trace with hash 965347417, now seen corresponding path program 1 times [2022-11-20 10:45:48,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:48,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027745949] [2022-11-20 10:45:48,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:48,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:48,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:48,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027745949] [2022-11-20 10:45:48,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027745949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:48,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:48,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:45:48,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807185804] [2022-11-20 10:45:48,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:48,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:48,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:48,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:48,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:48,542 INFO L87 Difference]: Start difference. First operand 3473 states and 4560 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:51,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:45:51,675 INFO L93 Difference]: Finished difference Result 7021 states and 9234 transitions. [2022-11-20 10:45:51,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:51,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-20 10:45:51,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:45:51,688 INFO L225 Difference]: With dead ends: 7021 [2022-11-20 10:45:51,688 INFO L226 Difference]: Without dead ends: 3607 [2022-11-20 10:45:51,693 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 [2022-11-20 10:45:51,694 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 66 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:45:51,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 216 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:45:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2022-11-20 10:45:54,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3605. [2022-11-20 10:45:54,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 3604 states have (on average 1.293007769145394) internal successors, (4660), 3604 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:54,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 4660 transitions. [2022-11-20 10:45:54,607 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 4660 transitions. Word has length 79 [2022-11-20 10:45:54,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:54,607 INFO L495 AbstractCegarLoop]: Abstraction has 3605 states and 4660 transitions. [2022-11-20 10:45:54,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:54,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 4660 transitions. [2022-11-20 10:45:54,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-20 10:45:54,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:54,610 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:54,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 10:45:54,611 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:45:54,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:54,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1381911094, now seen corresponding path program 1 times [2022-11-20 10:45:54,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:54,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831068911] [2022-11-20 10:45:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:54,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:55,001 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:55,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:55,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831068911] [2022-11-20 10:45:55,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831068911] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:45:55,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380178830] [2022-11-20 10:45:55,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:55,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:45:55,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:45:55,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:45:55,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:45:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:55,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 10:45:55,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:45:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:56,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:45:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:58,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380178830] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:45:58,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:45:58,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 26 [2022-11-20 10:45:58,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317297549] [2022-11-20 10:45:58,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:45:58,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 10:45:58,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:58,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 10:45:58,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2022-11-20 10:45:58,597 INFO L87 Difference]: Start difference. First operand 3605 states and 4660 transitions. Second operand has 27 states, 27 states have (on average 9.851851851851851) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:39,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:39,947 INFO L93 Difference]: Finished difference Result 38133 states and 48312 transitions. [2022-11-20 10:46:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-11-20 10:46:39,947 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.851851851851851) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 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 101 [2022-11-20 10:46:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:40,055 INFO L225 Difference]: With dead ends: 38133 [2022-11-20 10:46:40,055 INFO L226 Difference]: Without dead ends: 34587 [2022-11-20 10:46:40,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5290 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=3066, Invalid=12684, Unknown=0, NotChecked=0, Total=15750 [2022-11-20 10:46:40,071 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 4961 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4961 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:40,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4961 Valid, 1808 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 10:46:40,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34587 states. [2022-11-20 10:46:47,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34587 to 7680. [2022-11-20 10:46:47,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7680 states, 7679 states have (on average 1.2862351868732909) internal successors, (9877), 7679 states have internal predecessors, (9877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:47,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7680 states to 7680 states and 9877 transitions. [2022-11-20 10:46:47,824 INFO L78 Accepts]: Start accepts. Automaton has 7680 states and 9877 transitions. Word has length 101 [2022-11-20 10:46:47,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:47,825 INFO L495 AbstractCegarLoop]: Abstraction has 7680 states and 9877 transitions. [2022-11-20 10:46:47,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.851851851851851) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:47,826 INFO L276 IsEmpty]: Start isEmpty. Operand 7680 states and 9877 transitions. [2022-11-20 10:46:47,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 10:46:47,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:47,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:47,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:48,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:48,042 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:46:48,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1466079819, now seen corresponding path program 1 times [2022-11-20 10:46:48,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:48,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835053643] [2022-11-20 10:46:48,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:48,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 10:46:48,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:48,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835053643] [2022-11-20 10:46:48,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835053643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:48,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:48,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:46:48,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921012753] [2022-11-20 10:46:48,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:48,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:46:48,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:48,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:46:48,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:48,134 INFO L87 Difference]: Start difference. First operand 7680 states and 9877 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:55,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:55,265 INFO L93 Difference]: Finished difference Result 14658 states and 18940 transitions. [2022-11-20 10:46:55,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:46:55,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 102 [2022-11-20 10:46:55,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:55,284 INFO L225 Difference]: With dead ends: 14658 [2022-11-20 10:46:55,284 INFO L226 Difference]: Without dead ends: 7044 [2022-11-20 10:46:55,293 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 [2022-11-20 10:46:55,294 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 82 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:55,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 103 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:46:55,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7044 states. [2022-11-20 10:47:02,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7044 to 7044. [2022-11-20 10:47:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 7043 states have (on average 1.2808462302995882) internal successors, (9021), 7043 states have internal predecessors, (9021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:47:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 9021 transitions. [2022-11-20 10:47:02,717 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 9021 transitions. Word has length 102 [2022-11-20 10:47:02,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:47:02,717 INFO L495 AbstractCegarLoop]: Abstraction has 7044 states and 9021 transitions. [2022-11-20 10:47:02,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:47:02,718 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 9021 transitions. [2022-11-20 10:47:02,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 10:47:02,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:47:02,721 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:47:02,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-20 10:47:02,722 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:47:02,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:02,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1423038550, now seen corresponding path program 1 times [2022-11-20 10:47:02,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:02,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247556133] [2022-11-20 10:47:02,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:02,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:03,007 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:47:03,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:47:03,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247556133] [2022-11-20 10:47:03,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247556133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:03,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:03,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:47:03,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974532788] [2022-11-20 10:47:03,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:03,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:47:03,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:47:03,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:47:03,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:47:03,011 INFO L87 Difference]: Start difference. First operand 7044 states and 9021 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:47:16,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:16,332 INFO L93 Difference]: Finished difference Result 21250 states and 27175 transitions. [2022-11-20 10:47:16,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:47:16,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-11-20 10:47:16,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:47:16,354 INFO L225 Difference]: With dead ends: 21250 [2022-11-20 10:47:16,355 INFO L226 Difference]: Without dead ends: 14266 [2022-11-20 10:47:16,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:47:16,365 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 443 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:47:16,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 375 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:47:16,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14266 states. [2022-11-20 10:47:22,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14266 to 7044. [2022-11-20 10:47:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 7043 states have (on average 1.2807042453499928) internal successors, (9020), 7043 states have internal predecessors, (9020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:47:22,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 9020 transitions. [2022-11-20 10:47:22,733 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 9020 transitions. Word has length 102 [2022-11-20 10:47:22,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:47:22,734 INFO L495 AbstractCegarLoop]: Abstraction has 7044 states and 9020 transitions. [2022-11-20 10:47:22,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:47:22,734 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 9020 transitions. [2022-11-20 10:47:22,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 10:47:22,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:47:22,737 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:47:22,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-20 10:47:22,738 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:47:22,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1774298759, now seen corresponding path program 1 times [2022-11-20 10:47:22,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:22,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862409748] [2022-11-20 10:47:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:22,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:23,344 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:23,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:47:23,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862409748] [2022-11-20 10:47:23,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862409748] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:47:23,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81518993] [2022-11-20 10:47:23,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:23,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:47:23,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:23,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:47:23,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:47:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:23,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-20 10:47:23,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:24,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:47:26,701 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:26,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81518993] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:47:26,702 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:47:26,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2022-11-20 10:47:26,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892964880] [2022-11-20 10:47:26,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:47:26,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-20 10:47:26,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:47:26,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-20 10:47:26,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=880, Unknown=0, NotChecked=0, Total=992 [2022-11-20 10:47:26,705 INFO L87 Difference]: Start difference. First operand 7044 states and 9020 transitions. Second operand has 32 states, 32 states have (on average 9.03125) internal successors, (289), 31 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:49:44,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:44,935 INFO L93 Difference]: Finished difference Result 88210 states and 110420 transitions. [2022-11-20 10:49:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 280 states. [2022-11-20 10:49:44,936 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.03125) internal successors, (289), 31 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-11-20 10:49:44,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:45,083 INFO L225 Difference]: With dead ends: 88210 [2022-11-20 10:49:45,083 INFO L226 Difference]: Without dead ends: 81232 [2022-11-20 10:49:45,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37104 ImplicationChecksByTransitivity, 41.1s TimeCoverageRelationStatistics Valid=13921, Invalid=81869, Unknown=0, NotChecked=0, Total=95790 [2022-11-20 10:49:45,122 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 7343 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 3267 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7343 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 3389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 3267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:45,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7343 Valid, 2471 Invalid, 3389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 3267 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-20 10:49:45,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81232 states. [2022-11-20 10:50:03,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81232 to 17086. [2022-11-20 10:50:03,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17086 states, 17085 states have (on average 1.2877963125548726) internal successors, (22002), 17085 states have internal predecessors, (22002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17086 states to 17086 states and 22002 transitions. [2022-11-20 10:50:03,995 INFO L78 Accepts]: Start accepts. Automaton has 17086 states and 22002 transitions. Word has length 103 [2022-11-20 10:50:03,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:03,995 INFO L495 AbstractCegarLoop]: Abstraction has 17086 states and 22002 transitions. [2022-11-20 10:50:03,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.03125) internal successors, (289), 31 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 17086 states and 22002 transitions. [2022-11-20 10:50:03,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-20 10:50:03,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:03,999 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:04,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:50:04,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-20 10:50:04,205 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-20 10:50:04,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:04,205 INFO L85 PathProgramCache]: Analyzing trace with hash 481296185, now seen corresponding path program 1 times [2022-11-20 10:50:04,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:04,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680115627] [2022-11-20 10:50:04,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:04,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:04,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:04,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680115627] [2022-11-20 10:50:04,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680115627] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:50:04,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218424608] [2022-11-20 10:50:04,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:04,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:50:04,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:50:04,734 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:50:04,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf66039-98a4-4ac2-b72d-1cf97fe1e653/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:50:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:04,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 10:50:04,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:06,253 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:06,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:50:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:09,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218424608] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:50:09,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:50:09,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 39 [2022-11-20 10:50:09,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132969084] [2022-11-20 10:50:09,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:50:09,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-20 10:50:09,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-20 10:50:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1357, Unknown=0, NotChecked=0, Total=1482 [2022-11-20 10:50:09,853 INFO L87 Difference]: Start difference. First operand 17086 states and 22002 transitions. Second operand has 39 states, 39 states have (on average 7.153846153846154) internal successors, (279), 39 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)