./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8 --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 72fb41a66cb1f9b8ef6e2c9a867b06ff465ce26afd613e6d36809476f178395e --- 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-e04fb08 [2022-11-16 11:23:20,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:23:20,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:23:20,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:23:20,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:23:20,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:23:20,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:23:20,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:23:20,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:23:20,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:23:20,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:23:20,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:23:20,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:23:20,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:23:20,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:23:20,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:23:20,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:23:20,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:23:20,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:23:20,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:23:20,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:23:20,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:23:20,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:23:20,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:23:20,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:23:20,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:23:20,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:23:20,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:23:20,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:23:20,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:23:20,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:23:20,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:23:20,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:23:20,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:23:20,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:23:20,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:23:20,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:23:20,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:23:20,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:23:20,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:23:20,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:23:20,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:23:20,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:23:20,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:23:20,611 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:23:20,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:23:20,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:23:20,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:23:20,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:23:20,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:23:20,614 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:23:20,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:23:20,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:23:20,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:23:20,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:23:20,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:23:20,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:23:20,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:23:20,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:23:20,617 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:23:20,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:23:20,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:23:20,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:23:20,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:23:20,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:23:20,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:23:20,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:23:20,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:23:20,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:23:20,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:23:20,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:23:20,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:23:20,621 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:23:20,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:23:20,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:23:20,622 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72fb41a66cb1f9b8ef6e2c9a867b06ff465ce26afd613e6d36809476f178395e [2022-11-16 11:23:20,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:23:20,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:23:20,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:23:20,973 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:23:20,974 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:23:20,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 11:23:21,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/data/fe4a954de/6af0fdd4e50f46f3875ccabc0dc51660/FLAG66cad9b6c [2022-11-16 11:23:21,773 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:23:21,774 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 11:23:21,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/data/fe4a954de/6af0fdd4e50f46f3875ccabc0dc51660/FLAG66cad9b6c [2022-11-16 11:23:21,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/data/fe4a954de/6af0fdd4e50f46f3875ccabc0dc51660 [2022-11-16 11:23:21,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:23:21,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:23:21,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:23:21,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:23:21,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:23:21,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:23:21" (1/1) ... [2022-11-16 11:23:21,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b90c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:21, skipping insertion in model container [2022-11-16 11:23:21,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:23:21" (1/1) ... [2022-11-16 11:23:21,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:23:22,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:23:22,532 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13533,13546] [2022-11-16 11:23:22,576 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18033,18046] [2022-11-16 11:23:22,589 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19325,19338] [2022-11-16 11:23:22,597 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20083,20096] [2022-11-16 11:23:22,612 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21703,21716] [2022-11-16 11:23:22,620 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22461,22474] [2022-11-16 11:23:22,630 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23547,23560] [2022-11-16 11:23:22,651 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26086,26099] [2022-11-16 11:23:22,659 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26847,26860] [2022-11-16 11:23:22,669 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27936,27949] [2022-11-16 11:23:22,687 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29941,29954] [2022-11-16 11:23:22,717 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33864,33877] [2022-11-16 11:23:22,725 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34625,34638] [2022-11-16 11:23:22,734 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35718,35731] [2022-11-16 11:23:22,750 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37727,37740] [2022-11-16 11:23:22,778 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41330,41343] [2022-11-16 11:23:22,815 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48207,48220] [2022-11-16 11:23:22,821 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48968,48981] [2022-11-16 11:23:22,828 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[50057,50070] [2022-11-16 11:23:22,839 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52062,52075] [2022-11-16 11:23:22,856 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55451,55464] [2022-11-16 11:23:22,892 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61148,61161] [2022-11-16 11:23:23,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:23:23,329 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:23:23,431 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13533,13546] [2022-11-16 11:23:23,460 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18033,18046] [2022-11-16 11:23:23,486 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19325,19338] [2022-11-16 11:23:23,491 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20083,20096] [2022-11-16 11:23:23,500 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21703,21716] [2022-11-16 11:23:23,505 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22461,22474] [2022-11-16 11:23:23,511 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23547,23560] [2022-11-16 11:23:23,523 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26086,26099] [2022-11-16 11:23:23,529 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26847,26860] [2022-11-16 11:23:23,536 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27936,27949] [2022-11-16 11:23:23,545 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29941,29954] [2022-11-16 11:23:23,562 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33864,33877] [2022-11-16 11:23:23,566 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34625,34638] [2022-11-16 11:23:23,572 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35718,35731] [2022-11-16 11:23:23,582 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37727,37740] [2022-11-16 11:23:23,598 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41330,41343] [2022-11-16 11:23:23,627 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48207,48220] [2022-11-16 11:23:23,631 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48968,48981] [2022-11-16 11:23:23,637 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[50057,50070] [2022-11-16 11:23:23,647 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52062,52075] [2022-11-16 11:23:23,661 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55451,55464] [2022-11-16 11:23:23,683 WARN L229 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_12bc12b5-dae9-475b-b43c-35c2ed7fd064/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61148,61161] [2022-11-16 11:23:23,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:23:23,992 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:23:23,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23 WrapperNode [2022-11-16 11:23:23,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:23:23,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:23:23,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:23:23,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:23:24,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,214 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6324 [2022-11-16 11:23:24,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:23:24,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:23:24,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:23:24,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:23:24,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,395 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:23:24,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:23:24,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:23:24,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:23:24,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (1/1) ... [2022-11-16 11:23:24,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:23:24,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:23:24,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:23:24,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bc12b5-dae9-475b-b43c-35c2ed7fd064/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:23:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:23:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:23:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:23:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:23:24,909 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:23:24,912 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:23:28,098 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:23:28,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:23:28,116 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:23:28,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:23:28 BoogieIcfgContainer [2022-11-16 11:23:28,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:23:28,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:23:28,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:23:28,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:23:28,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:23:21" (1/3) ... [2022-11-16 11:23:28,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1942efe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:23:28, skipping insertion in model container [2022-11-16 11:23:28,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:23:23" (2/3) ... [2022-11-16 11:23:28,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1942efe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:23:28, skipping insertion in model container [2022-11-16 11:23:28,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:23:28" (3/3) ... [2022-11-16 11:23:28,133 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 11:23:28,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:23:28,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-16 11:23:28,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:23:28,273 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;@3992ddd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:23:28,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-16 11:23:28,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 1124 states, 1101 states have (on average 1.8601271571298819) internal successors, (2048), 1123 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-16 11:23:28,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:28,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:28,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:28,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:28,321 INFO L85 PathProgramCache]: Analyzing trace with hash -845723877, now seen corresponding path program 1 times [2022-11-16 11:23:28,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:28,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762661772] [2022-11-16 11:23:28,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:28,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:29,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:29,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:29,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762661772] [2022-11-16 11:23:29,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762661772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:29,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:29,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:29,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905725555] [2022-11-16 11:23:29,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:29,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:23:29,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:29,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:23:29,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:23:29,138 INFO L87 Difference]: Start difference. First operand has 1124 states, 1101 states have (on average 1.8601271571298819) internal successors, (2048), 1123 states have internal predecessors, (2048), 0 states have call successors, (0), 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 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:30,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:30,392 INFO L93 Difference]: Finished difference Result 2048 states and 3566 transitions. [2022-11-16 11:23:30,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:30,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-11-16 11:23:30,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:30,426 INFO L225 Difference]: With dead ends: 2048 [2022-11-16 11:23:30,427 INFO L226 Difference]: Without dead ends: 1214 [2022-11-16 11:23:30,437 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 [2022-11-16 11:23:30,447 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 5596 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5596 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:30,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5596 Valid, 1387 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:23:30,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-11-16 11:23:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1134. [2022-11-16 11:23:30,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 1112 states have (on average 1.3696043165467626) internal successors, (1523), 1133 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1523 transitions. [2022-11-16 11:23:30,577 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1523 transitions. Word has length 85 [2022-11-16 11:23:30,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:30,578 INFO L495 AbstractCegarLoop]: Abstraction has 1134 states and 1523 transitions. [2022-11-16 11:23:30,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:30,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1523 transitions. [2022-11-16 11:23:30,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 11:23:30,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:30,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:30,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:23:30,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:30,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:30,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1932230466, now seen corresponding path program 1 times [2022-11-16 11:23:30,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:30,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526009706] [2022-11-16 11:23:30,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:30,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:30,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:30,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526009706] [2022-11-16 11:23:30,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526009706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:30,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:30,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:30,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079294402] [2022-11-16 11:23:30,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:30,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:23:30,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:30,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:23:30,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:23:30,929 INFO L87 Difference]: Start difference. First operand 1134 states and 1523 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:31,645 INFO L93 Difference]: Finished difference Result 1969 states and 2716 transitions. [2022-11-16 11:23:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:31,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-11-16 11:23:31,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:31,650 INFO L225 Difference]: With dead ends: 1969 [2022-11-16 11:23:31,650 INFO L226 Difference]: Without dead ends: 1030 [2022-11-16 11:23:31,652 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 [2022-11-16 11:23:31,653 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 2884 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:31,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 564 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:23:31,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-11-16 11:23:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2022-11-16 11:23:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1008 states have (on average 1.3898809523809523) internal successors, (1401), 1029 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1401 transitions. [2022-11-16 11:23:31,720 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1401 transitions. Word has length 86 [2022-11-16 11:23:31,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:31,722 INFO L495 AbstractCegarLoop]: Abstraction has 1030 states and 1401 transitions. [2022-11-16 11:23:31,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:31,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1401 transitions. [2022-11-16 11:23:31,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-16 11:23:31,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:31,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:31,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:23:31,730 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:31,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:31,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1627866598, now seen corresponding path program 1 times [2022-11-16 11:23:31,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:31,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070712688] [2022-11-16 11:23:31,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:31,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:31,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:31,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:31,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070712688] [2022-11-16 11:23:31,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070712688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:31,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:31,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:31,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016337290] [2022-11-16 11:23:31,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:31,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:23:31,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:31,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:23:31,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:23:31,940 INFO L87 Difference]: Start difference. First operand 1030 states and 1401 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:32,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:32,555 INFO L93 Difference]: Finished difference Result 1865 states and 2592 transitions. [2022-11-16 11:23:32,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:32,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-11-16 11:23:32,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:32,560 INFO L225 Difference]: With dead ends: 1865 [2022-11-16 11:23:32,560 INFO L226 Difference]: Without dead ends: 966 [2022-11-16 11:23:32,562 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 [2022-11-16 11:23:32,563 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 2683 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2683 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:32,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2683 Valid, 532 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:23:32,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-11-16 11:23:32,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-11-16 11:23:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 944 states have (on average 1.4057203389830508) internal successors, (1327), 965 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:32,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1327 transitions. [2022-11-16 11:23:32,624 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1327 transitions. Word has length 87 [2022-11-16 11:23:32,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:32,624 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1327 transitions. [2022-11-16 11:23:32,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1327 transitions. [2022-11-16 11:23:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-16 11:23:32,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:32,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:32,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:23:32,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:32,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2037300131, now seen corresponding path program 1 times [2022-11-16 11:23:32,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:32,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257489673] [2022-11-16 11:23:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:32,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:32,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:32,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257489673] [2022-11-16 11:23:32,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257489673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:32,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:32,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:32,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655785304] [2022-11-16 11:23:32,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:32,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:23:32,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:32,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:23:32,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:23:32,823 INFO L87 Difference]: Start difference. First operand 966 states and 1327 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:33,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:33,421 INFO L93 Difference]: Finished difference Result 1801 states and 2516 transitions. [2022-11-16 11:23:33,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:33,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-11-16 11:23:33,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:33,426 INFO L225 Difference]: With dead ends: 1801 [2022-11-16 11:23:33,426 INFO L226 Difference]: Without dead ends: 925 [2022-11-16 11:23:33,428 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 [2022-11-16 11:23:33,429 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 2571 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2571 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:33,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2571 Valid, 507 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:23:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-11-16 11:23:33,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 925. [2022-11-16 11:23:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.41749723145072) internal successors, (1280), 924 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1280 transitions. [2022-11-16 11:23:33,521 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1280 transitions. Word has length 88 [2022-11-16 11:23:33,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:33,521 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1280 transitions. [2022-11-16 11:23:33,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:33,522 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1280 transitions. [2022-11-16 11:23:33,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-16 11:23:33,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:33,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:33,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:23:33,525 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:33,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:33,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1730545767, now seen corresponding path program 1 times [2022-11-16 11:23:33,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:33,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764573443] [2022-11-16 11:23:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:33,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:33,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:33,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764573443] [2022-11-16 11:23:33,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764573443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:33,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:33,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:33,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503972156] [2022-11-16 11:23:33,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:33,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:23:33,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:33,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:23:33,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:23:33,725 INFO L87 Difference]: Start difference. First operand 925 states and 1280 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:34,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:34,297 INFO L93 Difference]: Finished difference Result 1760 states and 2467 transitions. [2022-11-16 11:23:34,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:34,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-11-16 11:23:34,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:34,301 INFO L225 Difference]: With dead ends: 1760 [2022-11-16 11:23:34,301 INFO L226 Difference]: Without dead ends: 906 [2022-11-16 11:23:34,303 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 [2022-11-16 11:23:34,305 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 2492 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:34,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2492 Valid, 496 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:23:34,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-11-16 11:23:34,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 906. [2022-11-16 11:23:34,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 884 states have (on average 1.4219457013574661) internal successors, (1257), 905 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1257 transitions. [2022-11-16 11:23:34,375 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1257 transitions. Word has length 89 [2022-11-16 11:23:34,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:34,376 INFO L495 AbstractCegarLoop]: Abstraction has 906 states and 1257 transitions. [2022-11-16 11:23:34,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:34,376 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1257 transitions. [2022-11-16 11:23:34,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-16 11:23:34,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:34,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:34,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:23:34,379 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:34,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:34,379 INFO L85 PathProgramCache]: Analyzing trace with hash -593456260, now seen corresponding path program 1 times [2022-11-16 11:23:34,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:34,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825518797] [2022-11-16 11:23:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:34,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:34,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:34,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:34,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825518797] [2022-11-16 11:23:34,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825518797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:34,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:34,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:23:34,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946953722] [2022-11-16 11:23:34,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:34,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:23:34,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:34,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:23:34,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:23:34,613 INFO L87 Difference]: Start difference. First operand 906 states and 1257 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:35,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:35,299 INFO L93 Difference]: Finished difference Result 1741 states and 2442 transitions. [2022-11-16 11:23:35,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:23:35,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-11-16 11:23:35,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:35,305 INFO L225 Difference]: With dead ends: 1741 [2022-11-16 11:23:35,305 INFO L226 Difference]: Without dead ends: 901 [2022-11-16 11:23:35,306 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 [2022-11-16 11:23:35,309 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 2410 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:35,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2410 Valid, 421 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:23:35,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2022-11-16 11:23:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2022-11-16 11:23:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4209328782707622) internal successors, (1249), 900 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:35,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1249 transitions. [2022-11-16 11:23:35,391 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1249 transitions. Word has length 90 [2022-11-16 11:23:35,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:35,391 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1249 transitions. [2022-11-16 11:23:35,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:35,392 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1249 transitions. [2022-11-16 11:23:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-16 11:23:35,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:35,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:35,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:23:35,394 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:35,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:35,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1183984296, now seen corresponding path program 1 times [2022-11-16 11:23:35,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:35,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858614733] [2022-11-16 11:23:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:35,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:35,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:35,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858614733] [2022-11-16 11:23:35,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858614733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:35,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:35,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:23:35,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422920260] [2022-11-16 11:23:35,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:35,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:23:35,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:35,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:23:35,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:23:35,864 INFO L87 Difference]: Start difference. First operand 901 states and 1249 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:37,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:37,009 INFO L93 Difference]: Finished difference Result 1639 states and 2213 transitions. [2022-11-16 11:23:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:23:37,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-11-16 11:23:37,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:37,013 INFO L225 Difference]: With dead ends: 1639 [2022-11-16 11:23:37,014 INFO L226 Difference]: Without dead ends: 1222 [2022-11-16 11:23:37,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:23:37,015 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 3893 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3893 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:37,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3893 Valid, 1026 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:23:37,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2022-11-16 11:23:37,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 901. [2022-11-16 11:23:37,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4197952218430034) internal successors, (1248), 900 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:37,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1248 transitions. [2022-11-16 11:23:37,110 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1248 transitions. Word has length 91 [2022-11-16 11:23:37,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:37,112 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1248 transitions. [2022-11-16 11:23:37,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:37,113 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1248 transitions. [2022-11-16 11:23:37,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-16 11:23:37,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:37,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:37,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:23:37,116 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:37,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:37,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1428942257, now seen corresponding path program 1 times [2022-11-16 11:23:37,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:37,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83939918] [2022-11-16 11:23:37,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:37,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:37,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:37,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:37,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83939918] [2022-11-16 11:23:37,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83939918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:37,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:37,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:23:37,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956861373] [2022-11-16 11:23:37,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:37,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:23:37,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:37,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:23:37,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:37,635 INFO L87 Difference]: Start difference. First operand 901 states and 1248 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:39,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:39,589 INFO L93 Difference]: Finished difference Result 1542 states and 2191 transitions. [2022-11-16 11:23:39,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:23:39,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-11-16 11:23:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:39,594 INFO L225 Difference]: With dead ends: 1542 [2022-11-16 11:23:39,596 INFO L226 Difference]: Without dead ends: 1278 [2022-11-16 11:23:39,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:23:39,598 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 2554 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:39,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2554 Valid, 2812 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:23:39,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2022-11-16 11:23:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 901. [2022-11-16 11:23:39,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4186575654152447) internal successors, (1247), 900 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:39,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1247 transitions. [2022-11-16 11:23:39,717 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1247 transitions. Word has length 91 [2022-11-16 11:23:39,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:39,717 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1247 transitions. [2022-11-16 11:23:39,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:39,717 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1247 transitions. [2022-11-16 11:23:39,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-16 11:23:39,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:39,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:39,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:23:39,722 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:39,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:39,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1459275419, now seen corresponding path program 1 times [2022-11-16 11:23:39,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:39,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843862246] [2022-11-16 11:23:39,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:39,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:40,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:40,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843862246] [2022-11-16 11:23:40,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843862246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:40,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:40,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:23:40,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660664409] [2022-11-16 11:23:40,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:40,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:23:40,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:40,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:23:40,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:40,174 INFO L87 Difference]: Start difference. First operand 901 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:42,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:42,155 INFO L93 Difference]: Finished difference Result 1917 states and 2715 transitions. [2022-11-16 11:23:42,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:23:42,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-11-16 11:23:42,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:42,161 INFO L225 Difference]: With dead ends: 1917 [2022-11-16 11:23:42,161 INFO L226 Difference]: Without dead ends: 1722 [2022-11-16 11:23:42,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:23:42,165 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 4742 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 2587 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:42,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4742 Valid, 2587 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:23:42,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-11-16 11:23:42,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2022-11-16 11:23:42,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4175199089874857) internal successors, (1246), 900 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:42,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1246 transitions. [2022-11-16 11:23:42,313 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1246 transitions. Word has length 91 [2022-11-16 11:23:42,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:42,314 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1246 transitions. [2022-11-16 11:23:42,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:42,314 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1246 transitions. [2022-11-16 11:23:42,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:23:42,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:42,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:42,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:23:42,318 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:42,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2136143015, now seen corresponding path program 1 times [2022-11-16 11:23:42,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:42,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545296107] [2022-11-16 11:23:42,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:42,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:42,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:42,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:42,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545296107] [2022-11-16 11:23:42,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545296107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:42,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:42,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:23:42,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624041766] [2022-11-16 11:23:42,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:42,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:23:42,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:42,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:23:42,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:42,729 INFO L87 Difference]: Start difference. First operand 901 states and 1246 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:44,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:44,187 INFO L93 Difference]: Finished difference Result 1528 states and 2149 transitions. [2022-11-16 11:23:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:23:44,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-16 11:23:44,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:44,191 INFO L225 Difference]: With dead ends: 1528 [2022-11-16 11:23:44,191 INFO L226 Difference]: Without dead ends: 1128 [2022-11-16 11:23:44,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:23:44,193 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 3744 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:44,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3744 Valid, 2073 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:23:44,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-11-16 11:23:44,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 901. [2022-11-16 11:23:44,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4152445961319682) internal successors, (1244), 900 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1244 transitions. [2022-11-16 11:23:44,323 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1244 transitions. Word has length 93 [2022-11-16 11:23:44,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:44,323 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1244 transitions. [2022-11-16 11:23:44,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:44,323 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1244 transitions. [2022-11-16 11:23:44,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:23:44,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:44,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:44,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:23:44,327 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:44,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:44,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2068984294, now seen corresponding path program 1 times [2022-11-16 11:23:44,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:44,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521381655] [2022-11-16 11:23:44,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:44,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:44,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:44,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521381655] [2022-11-16 11:23:44,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521381655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:44,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:44,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:23:44,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307736180] [2022-11-16 11:23:44,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:44,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:23:44,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:44,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:23:44,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:44,700 INFO L87 Difference]: Start difference. First operand 901 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:46,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:46,576 INFO L93 Difference]: Finished difference Result 1627 states and 2254 transitions. [2022-11-16 11:23:46,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:23:46,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-16 11:23:46,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:46,582 INFO L225 Difference]: With dead ends: 1627 [2022-11-16 11:23:46,582 INFO L226 Difference]: Without dead ends: 1622 [2022-11-16 11:23:46,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:23:46,584 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 4899 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4899 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:46,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4899 Valid, 2113 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:23:46,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-16 11:23:46,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-11-16 11:23:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4129692832764504) internal successors, (1242), 900 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:46,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1242 transitions. [2022-11-16 11:23:46,733 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1242 transitions. Word has length 93 [2022-11-16 11:23:46,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:46,734 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1242 transitions. [2022-11-16 11:23:46,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:46,734 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1242 transitions. [2022-11-16 11:23:46,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:23:46,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:46,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:46,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:23:46,737 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:46,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:46,738 INFO L85 PathProgramCache]: Analyzing trace with hash 928092964, now seen corresponding path program 1 times [2022-11-16 11:23:46,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:46,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014202562] [2022-11-16 11:23:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:46,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:47,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:47,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:47,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014202562] [2022-11-16 11:23:47,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014202562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:47,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:47,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:23:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338372086] [2022-11-16 11:23:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:47,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:23:47,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:23:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:47,106 INFO L87 Difference]: Start difference. First operand 901 states and 1242 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:49,199 INFO L93 Difference]: Finished difference Result 1966 states and 2774 transitions. [2022-11-16 11:23:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:23:49,200 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-16 11:23:49,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:49,206 INFO L225 Difference]: With dead ends: 1966 [2022-11-16 11:23:49,206 INFO L226 Difference]: Without dead ends: 1722 [2022-11-16 11:23:49,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:23:49,208 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 2978 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:49,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 3264 Invalid, 2552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:23:49,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-11-16 11:23:49,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2022-11-16 11:23:49,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.410693970420933) internal successors, (1240), 900 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1240 transitions. [2022-11-16 11:23:49,343 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1240 transitions. Word has length 93 [2022-11-16 11:23:49,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:49,343 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1240 transitions. [2022-11-16 11:23:49,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:49,344 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1240 transitions. [2022-11-16 11:23:49,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:23:49,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:49,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:49,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:23:49,347 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:49,347 INFO L85 PathProgramCache]: Analyzing trace with hash 538302253, now seen corresponding path program 1 times [2022-11-16 11:23:49,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:49,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806240724] [2022-11-16 11:23:49,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:49,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:49,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:49,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806240724] [2022-11-16 11:23:49,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806240724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:49,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:49,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:23:49,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422150579] [2022-11-16 11:23:49,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:49,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:23:49,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:49,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:23:49,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:49,683 INFO L87 Difference]: Start difference. First operand 901 states and 1240 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:51,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:51,588 INFO L93 Difference]: Finished difference Result 1773 states and 2469 transitions. [2022-11-16 11:23:51,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:23:51,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-16 11:23:51,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:51,594 INFO L225 Difference]: With dead ends: 1773 [2022-11-16 11:23:51,595 INFO L226 Difference]: Without dead ends: 1622 [2022-11-16 11:23:51,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:23:51,597 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 4889 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4889 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:51,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4889 Valid, 2112 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:23:51,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-16 11:23:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-11-16 11:23:51,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4095563139931742) internal successors, (1239), 900 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:51,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1239 transitions. [2022-11-16 11:23:51,782 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1239 transitions. Word has length 93 [2022-11-16 11:23:51,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:51,783 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1239 transitions. [2022-11-16 11:23:51,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:51,784 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1239 transitions. [2022-11-16 11:23:51,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:23:51,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:51,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:51,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:23:51,787 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:51,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:51,787 INFO L85 PathProgramCache]: Analyzing trace with hash -350742557, now seen corresponding path program 1 times [2022-11-16 11:23:51,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:51,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252895408] [2022-11-16 11:23:51,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:51,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:52,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:52,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:52,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252895408] [2022-11-16 11:23:52,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252895408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:52,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:52,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:23:52,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487114710] [2022-11-16 11:23:52,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:52,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:23:52,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:52,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:23:52,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:52,197 INFO L87 Difference]: Start difference. First operand 901 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:54,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:54,222 INFO L93 Difference]: Finished difference Result 1773 states and 2467 transitions. [2022-11-16 11:23:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:23:54,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-16 11:23:54,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:54,230 INFO L225 Difference]: With dead ends: 1773 [2022-11-16 11:23:54,231 INFO L226 Difference]: Without dead ends: 1622 [2022-11-16 11:23:54,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:23:54,234 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 2544 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2544 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 1788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:54,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2544 Valid, 2115 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:23:54,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-16 11:23:54,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-11-16 11:23:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4084186575654152) internal successors, (1238), 900 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1238 transitions. [2022-11-16 11:23:54,447 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1238 transitions. Word has length 93 [2022-11-16 11:23:54,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:54,447 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1238 transitions. [2022-11-16 11:23:54,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:54,448 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1238 transitions. [2022-11-16 11:23:54,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:23:54,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:54,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:54,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:23:54,451 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:54,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:54,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1561454545, now seen corresponding path program 1 times [2022-11-16 11:23:54,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:54,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703724474] [2022-11-16 11:23:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:54,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:54,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:54,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703724474] [2022-11-16 11:23:54,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703724474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:54,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:54,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:23:54,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468080473] [2022-11-16 11:23:54,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:54,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:23:54,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:54,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:23:54,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:54,824 INFO L87 Difference]: Start difference. First operand 901 states and 1238 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:57,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:57,013 INFO L93 Difference]: Finished difference Result 1932 states and 2718 transitions. [2022-11-16 11:23:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:23:57,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-16 11:23:57,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:57,019 INFO L225 Difference]: With dead ends: 1932 [2022-11-16 11:23:57,019 INFO L226 Difference]: Without dead ends: 1722 [2022-11-16 11:23:57,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:23:57,021 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 4044 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4044 SdHoareTripleChecker+Valid, 3139 SdHoareTripleChecker+Invalid, 2432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:57,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4044 Valid, 3139 Invalid, 2432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:23:57,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-11-16 11:23:57,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2022-11-16 11:23:57,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4072810011376564) internal successors, (1237), 900 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:57,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1237 transitions. [2022-11-16 11:23:57,204 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1237 transitions. Word has length 93 [2022-11-16 11:23:57,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:57,204 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1237 transitions. [2022-11-16 11:23:57,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:57,205 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1237 transitions. [2022-11-16 11:23:57,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:23:57,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:57,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:57,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:23:57,208 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:57,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:57,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1779757049, now seen corresponding path program 1 times [2022-11-16 11:23:57,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:57,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801846425] [2022-11-16 11:23:57,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:57,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:57,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:57,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:57,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801846425] [2022-11-16 11:23:57,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801846425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:57,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:57,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:23:57,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923387191] [2022-11-16 11:23:57,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:57,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:23:57,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:57,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:23:57,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:57,526 INFO L87 Difference]: Start difference. First operand 901 states and 1237 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:59,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:23:59,255 INFO L93 Difference]: Finished difference Result 1770 states and 2462 transitions. [2022-11-16 11:23:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:23:59,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-16 11:23:59,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:23:59,259 INFO L225 Difference]: With dead ends: 1770 [2022-11-16 11:23:59,259 INFO L226 Difference]: Without dead ends: 1622 [2022-11-16 11:23:59,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:23:59,260 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 3702 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3702 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:23:59,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3702 Valid, 2116 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:23:59,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-16 11:23:59,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-11-16 11:23:59,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4061433447098977) internal successors, (1236), 900 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:59,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1236 transitions. [2022-11-16 11:23:59,447 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1236 transitions. Word has length 93 [2022-11-16 11:23:59,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:23:59,447 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1236 transitions. [2022-11-16 11:23:59,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:59,447 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1236 transitions. [2022-11-16 11:23:59,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:23:59,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:23:59,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:59,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:23:59,450 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:23:59,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:59,451 INFO L85 PathProgramCache]: Analyzing trace with hash 162924990, now seen corresponding path program 1 times [2022-11-16 11:23:59,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:59,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089047483] [2022-11-16 11:23:59,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:59,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:59,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:59,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089047483] [2022-11-16 11:23:59,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089047483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:59,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:59,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:23:59,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959803173] [2022-11-16 11:23:59,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:59,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:23:59,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:59,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:23:59,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:23:59,759 INFO L87 Difference]: Start difference. First operand 901 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:01,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:01,516 INFO L93 Difference]: Finished difference Result 1627 states and 2242 transitions. [2022-11-16 11:24:01,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:01,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-16 11:24:01,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:01,520 INFO L225 Difference]: With dead ends: 1627 [2022-11-16 11:24:01,520 INFO L226 Difference]: Without dead ends: 1622 [2022-11-16 11:24:01,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:01,521 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 3702 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3702 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:01,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3702 Valid, 2113 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:24:01,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-16 11:24:01,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-11-16 11:24:01,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.405005688282139) internal successors, (1235), 900 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1235 transitions. [2022-11-16 11:24:01,704 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1235 transitions. Word has length 93 [2022-11-16 11:24:01,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:01,705 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1235 transitions. [2022-11-16 11:24:01,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1235 transitions. [2022-11-16 11:24:01,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:01,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:01,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:01,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:24:01,708 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:01,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:01,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1878690134, now seen corresponding path program 1 times [2022-11-16 11:24:01,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:01,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893068718] [2022-11-16 11:24:01,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:01,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:02,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:02,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:02,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893068718] [2022-11-16 11:24:02,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893068718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:02,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:02,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:02,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060089567] [2022-11-16 11:24:02,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:02,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:02,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:02,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:02,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:02,074 INFO L87 Difference]: Start difference. First operand 901 states and 1235 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) [2022-11-16 11:24:04,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:04,116 INFO L93 Difference]: Finished difference Result 1896 states and 2660 transitions. [2022-11-16 11:24:04,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:04,117 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 95 [2022-11-16 11:24:04,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:04,121 INFO L225 Difference]: With dead ends: 1896 [2022-11-16 11:24:04,121 INFO L226 Difference]: Without dead ends: 1694 [2022-11-16 11:24:04,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:24:04,122 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 4702 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4702 SdHoareTripleChecker+Valid, 2638 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:04,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4702 Valid, 2638 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:24:04,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-11-16 11:24:04,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2022-11-16 11:24:04,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4027303754266212) internal successors, (1233), 900 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1233 transitions. [2022-11-16 11:24:04,263 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1233 transitions. Word has length 95 [2022-11-16 11:24:04,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:04,264 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1233 transitions. [2022-11-16 11:24:04,264 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) [2022-11-16 11:24:04,264 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1233 transitions. [2022-11-16 11:24:04,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:04,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:04,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:04,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:24:04,267 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:04,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:04,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1469844906, now seen corresponding path program 1 times [2022-11-16 11:24:04,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:04,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386244013] [2022-11-16 11:24:04,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:04,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:04,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:04,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386244013] [2022-11-16 11:24:04,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386244013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:04,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:04,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:04,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836640469] [2022-11-16 11:24:04,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:04,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:04,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:04,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:04,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:04,657 INFO L87 Difference]: Start difference. First operand 901 states and 1233 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) [2022-11-16 11:24:06,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:06,888 INFO L93 Difference]: Finished difference Result 1838 states and 2566 transitions. [2022-11-16 11:24:06,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:06,889 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 95 [2022-11-16 11:24:06,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:06,894 INFO L225 Difference]: With dead ends: 1838 [2022-11-16 11:24:06,894 INFO L226 Difference]: Without dead ends: 1670 [2022-11-16 11:24:06,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:06,899 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 4051 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4051 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:06,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4051 Valid, 2958 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:24:06,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-11-16 11:24:07,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 901. [2022-11-16 11:24:07,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4004550625711036) internal successors, (1231), 900 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:07,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1231 transitions. [2022-11-16 11:24:07,053 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1231 transitions. Word has length 95 [2022-11-16 11:24:07,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:07,054 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1231 transitions. [2022-11-16 11:24:07,054 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) [2022-11-16 11:24:07,054 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1231 transitions. [2022-11-16 11:24:07,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:07,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:07,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:07,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:24:07,057 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:07,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:07,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2020844490, now seen corresponding path program 1 times [2022-11-16 11:24:07,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:07,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265442209] [2022-11-16 11:24:07,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:07,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:07,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:07,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265442209] [2022-11-16 11:24:07,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265442209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:07,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:07,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:07,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554917695] [2022-11-16 11:24:07,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:07,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:07,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:07,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:07,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:07,363 INFO L87 Difference]: Start difference. First operand 901 states and 1231 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) [2022-11-16 11:24:09,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:09,496 INFO L93 Difference]: Finished difference Result 1998 states and 2795 transitions. [2022-11-16 11:24:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:09,496 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 95 [2022-11-16 11:24:09,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:09,501 INFO L225 Difference]: With dead ends: 1998 [2022-11-16 11:24:09,501 INFO L226 Difference]: Without dead ends: 1722 [2022-11-16 11:24:09,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:09,503 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 2124 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2124 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:09,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2124 Valid, 3109 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:24:09,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-11-16 11:24:09,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2022-11-16 11:24:09,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.398179749715586) internal successors, (1229), 900 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:09,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1229 transitions. [2022-11-16 11:24:09,706 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1229 transitions. Word has length 95 [2022-11-16 11:24:09,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:09,706 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1229 transitions. [2022-11-16 11:24:09,706 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) [2022-11-16 11:24:09,706 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1229 transitions. [2022-11-16 11:24:09,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:09,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:09,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:09,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:24:09,709 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:09,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:09,709 INFO L85 PathProgramCache]: Analyzing trace with hash -742387417, now seen corresponding path program 1 times [2022-11-16 11:24:09,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:09,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882515357] [2022-11-16 11:24:09,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:09,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:10,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:10,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882515357] [2022-11-16 11:24:10,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882515357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:10,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:10,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:10,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968792546] [2022-11-16 11:24:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:10,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:10,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:10,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:10,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:10,095 INFO L87 Difference]: Start difference. First operand 901 states and 1229 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) [2022-11-16 11:24:12,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:12,244 INFO L93 Difference]: Finished difference Result 1884 states and 2638 transitions. [2022-11-16 11:24:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:12,245 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 95 [2022-11-16 11:24:12,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:12,249 INFO L225 Difference]: With dead ends: 1884 [2022-11-16 11:24:12,249 INFO L226 Difference]: Without dead ends: 1694 [2022-11-16 11:24:12,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:24:12,251 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 4398 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4398 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 2188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:12,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4398 Valid, 2884 Invalid, 2188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:24:12,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-11-16 11:24:12,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2022-11-16 11:24:12,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.3959044368600682) internal successors, (1227), 900 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:12,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1227 transitions. [2022-11-16 11:24:12,413 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1227 transitions. Word has length 95 [2022-11-16 11:24:12,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:12,414 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1227 transitions. [2022-11-16 11:24:12,414 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) [2022-11-16 11:24:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1227 transitions. [2022-11-16 11:24:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:12,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:12,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:12,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:24:12,416 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:12,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:12,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1920722797, now seen corresponding path program 1 times [2022-11-16 11:24:12,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:12,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144431886] [2022-11-16 11:24:12,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:12,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:12,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:12,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:12,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144431886] [2022-11-16 11:24:12,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144431886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:12,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:12,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:12,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836911335] [2022-11-16 11:24:12,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:12,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:12,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:12,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:12,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:12,770 INFO L87 Difference]: Start difference. First operand 901 states and 1227 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) [2022-11-16 11:24:15,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:15,061 INFO L93 Difference]: Finished difference Result 1832 states and 2553 transitions. [2022-11-16 11:24:15,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:15,064 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 95 [2022-11-16 11:24:15,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:15,067 INFO L225 Difference]: With dead ends: 1832 [2022-11-16 11:24:15,068 INFO L226 Difference]: Without dead ends: 1670 [2022-11-16 11:24:15,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:15,069 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 3999 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3999 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:15,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3999 Valid, 3031 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:24:15,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-11-16 11:24:15,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 901. [2022-11-16 11:24:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.3936291240045506) internal successors, (1225), 900 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:15,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1225 transitions. [2022-11-16 11:24:15,259 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1225 transitions. Word has length 95 [2022-11-16 11:24:15,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:15,259 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1225 transitions. [2022-11-16 11:24:15,259 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) [2022-11-16 11:24:15,260 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1225 transitions. [2022-11-16 11:24:15,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:15,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:15,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:15,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:24:15,261 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:15,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:15,262 INFO L85 PathProgramCache]: Analyzing trace with hash -891627133, now seen corresponding path program 1 times [2022-11-16 11:24:15,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:15,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777168936] [2022-11-16 11:24:15,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:15,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:15,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:15,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:15,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777168936] [2022-11-16 11:24:15,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777168936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:15,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:15,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:15,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659309179] [2022-11-16 11:24:15,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:15,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:15,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:15,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:15,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:15,599 INFO L87 Difference]: Start difference. First operand 901 states and 1225 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) [2022-11-16 11:24:17,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:17,886 INFO L93 Difference]: Finished difference Result 1834 states and 2552 transitions. [2022-11-16 11:24:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:17,886 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 95 [2022-11-16 11:24:17,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:17,890 INFO L225 Difference]: With dead ends: 1834 [2022-11-16 11:24:17,890 INFO L226 Difference]: Without dead ends: 1670 [2022-11-16 11:24:17,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:17,892 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 3999 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3999 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 2342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:17,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3999 Valid, 3028 Invalid, 2342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:24:17,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-11-16 11:24:18,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 901. [2022-11-16 11:24:18,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.391353811149033) internal successors, (1223), 900 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:18,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1223 transitions. [2022-11-16 11:24:18,085 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1223 transitions. Word has length 95 [2022-11-16 11:24:18,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:18,085 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1223 transitions. [2022-11-16 11:24:18,086 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) [2022-11-16 11:24:18,086 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1223 transitions. [2022-11-16 11:24:18,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:18,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:18,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:18,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:24:18,088 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:18,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:18,088 INFO L85 PathProgramCache]: Analyzing trace with hash -482781905, now seen corresponding path program 1 times [2022-11-16 11:24:18,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:18,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103103437] [2022-11-16 11:24:18,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:18,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:18,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:18,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103103437] [2022-11-16 11:24:18,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103103437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:18,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:18,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:24:18,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287332624] [2022-11-16 11:24:18,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:18,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:24:18,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:18,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:24:18,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:24:18,813 INFO L87 Difference]: Start difference. First operand 901 states and 1223 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2022-11-16 11:24:23,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:23,158 INFO L93 Difference]: Finished difference Result 2968 states and 4227 transitions. [2022-11-16 11:24:23,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:24:23,159 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-11-16 11:24:23,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:23,163 INFO L225 Difference]: With dead ends: 2968 [2022-11-16 11:24:23,163 INFO L226 Difference]: Without dead ends: 2778 [2022-11-16 11:24:23,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:24:23,165 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 6181 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6181 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 3175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:23,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6181 Valid, 3708 Invalid, 3175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 2967 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-16 11:24:23,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2022-11-16 11:24:23,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 909. [2022-11-16 11:24:23,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3878241262683202) internal successors, (1231), 908 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:23,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1231 transitions. [2022-11-16 11:24:23,393 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1231 transitions. Word has length 95 [2022-11-16 11:24:23,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:23,393 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1231 transitions. [2022-11-16 11:24:23,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2022-11-16 11:24:23,394 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1231 transitions. [2022-11-16 11:24:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:23,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:23,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:23,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:24:23,396 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:23,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:23,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1726591378, now seen corresponding path program 1 times [2022-11-16 11:24:23,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:23,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344175942] [2022-11-16 11:24:23,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:23,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:23,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:23,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:23,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344175942] [2022-11-16 11:24:23,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344175942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:23,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:23,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:23,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608807253] [2022-11-16 11:24:23,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:23,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:23,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:23,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:23,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:23,737 INFO L87 Difference]: Start difference. First operand 909 states and 1231 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) [2022-11-16 11:24:26,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:26,143 INFO L93 Difference]: Finished difference Result 1865 states and 2602 transitions. [2022-11-16 11:24:26,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:26,143 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 95 [2022-11-16 11:24:26,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:26,146 INFO L225 Difference]: With dead ends: 1865 [2022-11-16 11:24:26,146 INFO L226 Difference]: Without dead ends: 1694 [2022-11-16 11:24:26,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:24:26,147 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 4227 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4227 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:26,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4227 Valid, 2832 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:24:26,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-11-16 11:24:26,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 909. [2022-11-16 11:24:26,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3866967305524238) internal successors, (1230), 908 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:26,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1230 transitions. [2022-11-16 11:24:26,357 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1230 transitions. Word has length 95 [2022-11-16 11:24:26,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:26,357 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1230 transitions. [2022-11-16 11:24:26,357 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) [2022-11-16 11:24:26,357 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1230 transitions. [2022-11-16 11:24:26,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:26,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:26,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:26,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:24:26,358 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:26,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:26,359 INFO L85 PathProgramCache]: Analyzing trace with hash -738270563, now seen corresponding path program 1 times [2022-11-16 11:24:26,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:26,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110909634] [2022-11-16 11:24:26,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:26,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:26,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:26,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110909634] [2022-11-16 11:24:26,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110909634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:26,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:26,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:26,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354354661] [2022-11-16 11:24:26,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:26,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:26,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:26,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:26,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:26,738 INFO L87 Difference]: Start difference. First operand 909 states and 1230 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) [2022-11-16 11:24:29,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:29,332 INFO L93 Difference]: Finished difference Result 1832 states and 2545 transitions. [2022-11-16 11:24:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:29,332 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 95 [2022-11-16 11:24:29,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:29,335 INFO L225 Difference]: With dead ends: 1832 [2022-11-16 11:24:29,336 INFO L226 Difference]: Without dead ends: 1678 [2022-11-16 11:24:29,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:29,337 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 3956 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3956 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:29,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3956 Valid, 3106 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:24:29,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2022-11-16 11:24:29,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 909. [2022-11-16 11:24:29,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3855693348365277) internal successors, (1229), 908 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:29,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1229 transitions. [2022-11-16 11:24:29,566 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1229 transitions. Word has length 95 [2022-11-16 11:24:29,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:29,566 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1229 transitions. [2022-11-16 11:24:29,566 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) [2022-11-16 11:24:29,566 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1229 transitions. [2022-11-16 11:24:29,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:29,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:29,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:29,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:24:29,568 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:29,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:29,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1229098544, now seen corresponding path program 1 times [2022-11-16 11:24:29,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:29,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860647877] [2022-11-16 11:24:29,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:29,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:30,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:30,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:30,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860647877] [2022-11-16 11:24:30,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860647877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:30,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:30,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:24:30,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131561615] [2022-11-16 11:24:30,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:30,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:24:30,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:30,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:24:30,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:24:30,149 INFO L87 Difference]: Start difference. First operand 909 states and 1229 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2022-11-16 11:24:34,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:34,744 INFO L93 Difference]: Finished difference Result 2948 states and 4193 transitions. [2022-11-16 11:24:34,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:24:34,745 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-11-16 11:24:34,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:34,749 INFO L225 Difference]: With dead ends: 2948 [2022-11-16 11:24:34,750 INFO L226 Difference]: Without dead ends: 2768 [2022-11-16 11:24:34,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:24:34,752 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 6955 mSDsluCounter, 3464 mSDsCounter, 0 mSdLazyCounter, 3399 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6955 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 3618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 3399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:34,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6955 Valid, 4292 Invalid, 3618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 3399 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-16 11:24:34,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2022-11-16 11:24:35,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 913. [2022-11-16 11:24:35,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3838383838383839) internal successors, (1233), 912 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1233 transitions. [2022-11-16 11:24:35,029 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1233 transitions. Word has length 95 [2022-11-16 11:24:35,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:35,030 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1233 transitions. [2022-11-16 11:24:35,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2022-11-16 11:24:35,030 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1233 transitions. [2022-11-16 11:24:35,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:35,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:35,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:35,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:24:35,032 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:35,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:35,032 INFO L85 PathProgramCache]: Analyzing trace with hash 744826422, now seen corresponding path program 1 times [2022-11-16 11:24:35,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:35,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661131623] [2022-11-16 11:24:35,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:35,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:35,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:35,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661131623] [2022-11-16 11:24:35,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661131623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:35,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:35,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:35,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415283788] [2022-11-16 11:24:35,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:35,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:35,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:35,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:35,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:35,381 INFO L87 Difference]: Start difference. First operand 913 states and 1233 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) [2022-11-16 11:24:37,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:37,914 INFO L93 Difference]: Finished difference Result 1840 states and 2552 transitions. [2022-11-16 11:24:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:37,914 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 95 [2022-11-16 11:24:37,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:37,917 INFO L225 Difference]: With dead ends: 1840 [2022-11-16 11:24:37,918 INFO L226 Difference]: Without dead ends: 1682 [2022-11-16 11:24:37,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:37,919 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 3953 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3953 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:37,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3953 Valid, 3102 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:24:37,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2022-11-16 11:24:38,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 913. [2022-11-16 11:24:38,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.382716049382716) internal successors, (1232), 912 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:38,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1232 transitions. [2022-11-16 11:24:38,202 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1232 transitions. Word has length 95 [2022-11-16 11:24:38,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:38,202 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1232 transitions. [2022-11-16 11:24:38,202 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) [2022-11-16 11:24:38,202 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1232 transitions. [2022-11-16 11:24:38,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:38,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:38,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:38,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 11:24:38,204 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:38,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:38,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1040432620, now seen corresponding path program 1 times [2022-11-16 11:24:38,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:38,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784768095] [2022-11-16 11:24:38,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:38,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:38,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:38,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784768095] [2022-11-16 11:24:38,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784768095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:38,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:38,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:38,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441456863] [2022-11-16 11:24:38,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:38,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:38,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:38,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:38,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:38,533 INFO L87 Difference]: Start difference. First operand 913 states and 1232 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) [2022-11-16 11:24:40,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:40,955 INFO L93 Difference]: Finished difference Result 1859 states and 2591 transitions. [2022-11-16 11:24:40,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:40,956 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 95 [2022-11-16 11:24:40,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:40,959 INFO L225 Difference]: With dead ends: 1859 [2022-11-16 11:24:40,959 INFO L226 Difference]: Without dead ends: 1694 [2022-11-16 11:24:40,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:24:40,960 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 4363 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4363 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:40,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4363 Valid, 2702 Invalid, 2073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:24:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-11-16 11:24:41,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 913. [2022-11-16 11:24:41,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3815937149270483) internal successors, (1231), 912 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:41,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1231 transitions. [2022-11-16 11:24:41,255 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1231 transitions. Word has length 95 [2022-11-16 11:24:41,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:41,255 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1231 transitions. [2022-11-16 11:24:41,255 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) [2022-11-16 11:24:41,255 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1231 transitions. [2022-11-16 11:24:41,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:41,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:41,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:41,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 11:24:41,256 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:41,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:41,256 INFO L85 PathProgramCache]: Analyzing trace with hash -359034935, now seen corresponding path program 1 times [2022-11-16 11:24:41,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:41,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326848475] [2022-11-16 11:24:41,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:41,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:41,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:41,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:41,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326848475] [2022-11-16 11:24:41,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326848475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:41,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:41,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:41,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631289044] [2022-11-16 11:24:41,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:41,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:41,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:41,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:41,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:41,588 INFO L87 Difference]: Start difference. First operand 913 states and 1231 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) [2022-11-16 11:24:44,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:44,206 INFO L93 Difference]: Finished difference Result 1834 states and 2544 transitions. [2022-11-16 11:24:44,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:44,206 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 95 [2022-11-16 11:24:44,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:44,209 INFO L225 Difference]: With dead ends: 1834 [2022-11-16 11:24:44,209 INFO L226 Difference]: Without dead ends: 1682 [2022-11-16 11:24:44,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:44,211 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 3910 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3910 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:44,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3910 Valid, 3163 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:24:44,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2022-11-16 11:24:44,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 913. [2022-11-16 11:24:44,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3804713804713804) internal successors, (1230), 912 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:44,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1230 transitions. [2022-11-16 11:24:44,509 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1230 transitions. Word has length 95 [2022-11-16 11:24:44,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:44,509 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1230 transitions. [2022-11-16 11:24:44,509 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) [2022-11-16 11:24:44,509 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1230 transitions. [2022-11-16 11:24:44,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:44,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:44,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:44,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 11:24:44,510 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash 933080142, now seen corresponding path program 1 times [2022-11-16 11:24:44,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:44,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520110690] [2022-11-16 11:24:44,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:44,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:45,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:45,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520110690] [2022-11-16 11:24:45,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520110690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:45,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:45,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:24:45,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657302740] [2022-11-16 11:24:45,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:45,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:24:45,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:45,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:24:45,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:24:45,024 INFO L87 Difference]: Start difference. First operand 913 states and 1230 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2022-11-16 11:24:49,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:49,685 INFO L93 Difference]: Finished difference Result 2930 states and 4170 transitions. [2022-11-16 11:24:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:24:49,685 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-11-16 11:24:49,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:49,690 INFO L225 Difference]: With dead ends: 2930 [2022-11-16 11:24:49,691 INFO L226 Difference]: Without dead ends: 2759 [2022-11-16 11:24:49,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:24:49,693 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 7171 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7171 SdHoareTripleChecker+Valid, 3380 SdHoareTripleChecker+Invalid, 2919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:49,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7171 Valid, 3380 Invalid, 2919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 11:24:49,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2022-11-16 11:24:50,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 917. [2022-11-16 11:24:50,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3787709497206704) internal successors, (1234), 916 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:50,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1234 transitions. [2022-11-16 11:24:50,038 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1234 transitions. Word has length 95 [2022-11-16 11:24:50,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:50,038 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1234 transitions. [2022-11-16 11:24:50,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2022-11-16 11:24:50,038 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1234 transitions. [2022-11-16 11:24:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:24:50,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:50,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:50,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 11:24:50,040 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:50,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:50,041 INFO L85 PathProgramCache]: Analyzing trace with hash -698776940, now seen corresponding path program 1 times [2022-11-16 11:24:50,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:50,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741571816] [2022-11-16 11:24:50,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:50,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:50,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:50,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:50,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741571816] [2022-11-16 11:24:50,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741571816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:50,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:50,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:50,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463402528] [2022-11-16 11:24:50,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:50,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:50,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:50,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:50,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:50,370 INFO L87 Difference]: Start difference. First operand 917 states and 1234 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) [2022-11-16 11:24:53,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:53,089 INFO L93 Difference]: Finished difference Result 1840 states and 2549 transitions. [2022-11-16 11:24:53,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:53,089 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 95 [2022-11-16 11:24:53,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:53,092 INFO L225 Difference]: With dead ends: 1840 [2022-11-16 11:24:53,092 INFO L226 Difference]: Without dead ends: 1686 [2022-11-16 11:24:53,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:53,093 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 3907 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3907 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 2428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:53,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3907 Valid, 3163 Invalid, 2428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:24:53,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-11-16 11:24:53,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 917. [2022-11-16 11:24:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3776536312849161) internal successors, (1233), 916 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:53,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1233 transitions. [2022-11-16 11:24:53,366 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1233 transitions. Word has length 95 [2022-11-16 11:24:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:53,367 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1233 transitions. [2022-11-16 11:24:53,367 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) [2022-11-16 11:24:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1233 transitions. [2022-11-16 11:24:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-16 11:24:53,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:53,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:53,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 11:24:53,368 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:53,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1514074373, now seen corresponding path program 1 times [2022-11-16 11:24:53,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:53,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254800546] [2022-11-16 11:24:53,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:53,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:53,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:53,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:53,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254800546] [2022-11-16 11:24:53,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254800546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:53,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:53,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:53,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772985124] [2022-11-16 11:24:53,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:53,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:53,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:53,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:53,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:53,639 INFO L87 Difference]: Start difference. First operand 917 states and 1233 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:56,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:56,237 INFO L93 Difference]: Finished difference Result 1884 states and 2615 transitions. [2022-11-16 11:24:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:56,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-11-16 11:24:56,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:56,240 INFO L225 Difference]: With dead ends: 1884 [2022-11-16 11:24:56,241 INFO L226 Difference]: Without dead ends: 1694 [2022-11-16 11:24:56,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:56,242 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 2098 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:56,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 2979 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:24:56,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-11-16 11:24:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 909. [2022-11-16 11:24:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3788049605411499) internal successors, (1223), 908 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1223 transitions. [2022-11-16 11:24:56,635 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1223 transitions. Word has length 96 [2022-11-16 11:24:56,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:56,635 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1223 transitions. [2022-11-16 11:24:56,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:56,635 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1223 transitions. [2022-11-16 11:24:56,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-16 11:24:56,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:56,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:56,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 11:24:56,637 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:56,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:56,637 INFO L85 PathProgramCache]: Analyzing trace with hash -411424135, now seen corresponding path program 1 times [2022-11-16 11:24:56,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:56,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078938806] [2022-11-16 11:24:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:56,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:56,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:56,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078938806] [2022-11-16 11:24:56,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078938806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:56,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:56,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:56,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002781689] [2022-11-16 11:24:56,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:56,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:56,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:56,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:56,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:56,899 INFO L87 Difference]: Start difference. First operand 909 states and 1223 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:59,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:59,459 INFO L93 Difference]: Finished difference Result 1874 states and 2598 transitions. [2022-11-16 11:24:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:59,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-11-16 11:24:59,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:59,461 INFO L225 Difference]: With dead ends: 1874 [2022-11-16 11:24:59,461 INFO L226 Difference]: Without dead ends: 1694 [2022-11-16 11:24:59,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:24:59,462 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 3006 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3006 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:59,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3006 Valid, 3079 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2324 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:24:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-11-16 11:24:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 905. [2022-11-16 11:24:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3793884484711212) internal successors, (1218), 904 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:59,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1218 transitions. [2022-11-16 11:24:59,740 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1218 transitions. Word has length 96 [2022-11-16 11:24:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:59,741 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1218 transitions. [2022-11-16 11:24:59,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1218 transitions. [2022-11-16 11:24:59,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-16 11:24:59,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:59,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:59,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 11:24:59,742 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:24:59,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:59,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1570558424, now seen corresponding path program 1 times [2022-11-16 11:24:59,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:59,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195043113] [2022-11-16 11:24:59,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:59,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:59,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:59,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195043113] [2022-11-16 11:24:59,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195043113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:59,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:59,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:24:59,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602999156] [2022-11-16 11:24:59,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:59,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:25:00,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:00,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:25:00,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:25:00,000 INFO L87 Difference]: Start difference. First operand 905 states and 1218 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:02,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:02,673 INFO L93 Difference]: Finished difference Result 1865 states and 2588 transitions. [2022-11-16 11:25:02,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:25:02,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-11-16 11:25:02,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:02,675 INFO L225 Difference]: With dead ends: 1865 [2022-11-16 11:25:02,676 INFO L226 Difference]: Without dead ends: 1694 [2022-11-16 11:25:02,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:25:02,676 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 3447 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3447 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:02,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3447 Valid, 3163 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:25:02,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-11-16 11:25:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2022-11-16 11:25:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.3799772468714449) internal successors, (1213), 900 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:02,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1213 transitions. [2022-11-16 11:25:02,997 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1213 transitions. Word has length 96 [2022-11-16 11:25:02,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:02,998 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1213 transitions. [2022-11-16 11:25:02,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1213 transitions. [2022-11-16 11:25:02,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:02,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:02,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:03,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 11:25:03,000 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:03,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:03,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1541256586, now seen corresponding path program 1 times [2022-11-16 11:25:03,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:03,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507483195] [2022-11-16 11:25:03,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:03,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:03,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:03,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:03,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507483195] [2022-11-16 11:25:03,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507483195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:03,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:03,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:25:03,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474744047] [2022-11-16 11:25:03,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:03,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:25:03,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:03,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:25:03,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:25:03,348 INFO L87 Difference]: Start difference. First operand 901 states and 1213 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:06,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:06,172 INFO L93 Difference]: Finished difference Result 1772 states and 2438 transitions. [2022-11-16 11:25:06,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:25:06,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:06,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:06,174 INFO L225 Difference]: With dead ends: 1772 [2022-11-16 11:25:06,174 INFO L226 Difference]: Without dead ends: 1622 [2022-11-16 11:25:06,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:25:06,175 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 3863 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 2452 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3863 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:06,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3863 Valid, 3079 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2452 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:25:06,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-16 11:25:06,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-11-16 11:25:06,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.377701934015927) internal successors, (1211), 900 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:06,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1211 transitions. [2022-11-16 11:25:06,449 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1211 transitions. Word has length 97 [2022-11-16 11:25:06,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:06,449 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1211 transitions. [2022-11-16 11:25:06,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:06,450 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1211 transitions. [2022-11-16 11:25:06,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:06,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:06,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:06,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 11:25:06,452 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:06,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:06,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1487727486, now seen corresponding path program 1 times [2022-11-16 11:25:06,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:06,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410557677] [2022-11-16 11:25:06,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:06,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:06,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:06,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:06,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410557677] [2022-11-16 11:25:06,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410557677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:06,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:06,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:25:06,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119089288] [2022-11-16 11:25:06,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:06,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:25:06,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:06,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:25:06,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:25:06,952 INFO L87 Difference]: Start difference. First operand 901 states and 1211 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:11,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:11,509 INFO L93 Difference]: Finished difference Result 2504 states and 3514 transitions. [2022-11-16 11:25:11,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:25:11,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:11,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:11,511 INFO L225 Difference]: With dead ends: 2504 [2022-11-16 11:25:11,512 INFO L226 Difference]: Without dead ends: 2350 [2022-11-16 11:25:11,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:25:11,513 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 7884 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7884 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 2888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:11,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7884 Valid, 3100 Invalid, 2888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 11:25:11,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2022-11-16 11:25:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 909. [2022-11-16 11:25:11,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3742953776775648) internal successors, (1219), 908 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:11,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1219 transitions. [2022-11-16 11:25:11,866 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1219 transitions. Word has length 97 [2022-11-16 11:25:11,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:11,866 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1219 transitions. [2022-11-16 11:25:11,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:11,866 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1219 transitions. [2022-11-16 11:25:11,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:11,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:11,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:11,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-16 11:25:11,868 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:11,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2052103235, now seen corresponding path program 1 times [2022-11-16 11:25:11,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:11,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444228342] [2022-11-16 11:25:11,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:11,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:12,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:12,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:12,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444228342] [2022-11-16 11:25:12,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444228342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:12,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:12,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:25:12,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250700507] [2022-11-16 11:25:12,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:12,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:25:12,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:12,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:25:12,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:25:12,189 INFO L87 Difference]: Start difference. First operand 909 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:15,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:15,035 INFO L93 Difference]: Finished difference Result 1776 states and 2439 transitions. [2022-11-16 11:25:15,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:25:15,035 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:15,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:15,037 INFO L225 Difference]: With dead ends: 1776 [2022-11-16 11:25:15,037 INFO L226 Difference]: Without dead ends: 1622 [2022-11-16 11:25:15,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:25:15,038 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 3962 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3962 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:15,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3962 Valid, 2861 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:25:15,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-16 11:25:15,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 909. [2022-11-16 11:25:15,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3720405862457723) internal successors, (1217), 908 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:15,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1217 transitions. [2022-11-16 11:25:15,341 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1217 transitions. Word has length 97 [2022-11-16 11:25:15,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:15,341 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1217 transitions. [2022-11-16 11:25:15,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:15,342 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1217 transitions. [2022-11-16 11:25:15,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:15,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:15,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:15,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-16 11:25:15,343 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:15,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash -139906133, now seen corresponding path program 1 times [2022-11-16 11:25:15,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:15,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223900409] [2022-11-16 11:25:15,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:15,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:15,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:15,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:15,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223900409] [2022-11-16 11:25:15,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223900409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:15,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:15,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:25:15,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090580977] [2022-11-16 11:25:15,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:15,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:25:15,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:15,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:25:15,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:25:15,872 INFO L87 Difference]: Start difference. First operand 909 states and 1217 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:21,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:21,267 INFO L93 Difference]: Finished difference Result 2752 states and 3883 transitions. [2022-11-16 11:25:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:25:21,268 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:21,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:21,270 INFO L225 Difference]: With dead ends: 2752 [2022-11-16 11:25:21,270 INFO L226 Difference]: Without dead ends: 2582 [2022-11-16 11:25:21,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:25:21,271 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 6142 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 3228 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6142 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 3440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 3228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:21,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6142 Valid, 4051 Invalid, 3440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 3228 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-16 11:25:21,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2582 states. [2022-11-16 11:25:21,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2582 to 917. [2022-11-16 11:25:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3687150837988826) internal successors, (1225), 916 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1225 transitions. [2022-11-16 11:25:21,620 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1225 transitions. Word has length 97 [2022-11-16 11:25:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:21,621 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1225 transitions. [2022-11-16 11:25:21,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1225 transitions. [2022-11-16 11:25:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:21,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:21,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:21,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-16 11:25:21,622 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1430230902, now seen corresponding path program 1 times [2022-11-16 11:25:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:21,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085976346] [2022-11-16 11:25:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:21,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:21,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:21,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085976346] [2022-11-16 11:25:21,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085976346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:21,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:21,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:25:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907115978] [2022-11-16 11:25:21,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:21,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:25:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:21,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:25:21,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:25:21,931 INFO L87 Difference]: Start difference. First operand 917 states and 1225 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:24,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:24,868 INFO L93 Difference]: Finished difference Result 1784 states and 2445 transitions. [2022-11-16 11:25:24,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:25:24,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:24,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:24,871 INFO L225 Difference]: With dead ends: 1784 [2022-11-16 11:25:24,871 INFO L226 Difference]: Without dead ends: 1630 [2022-11-16 11:25:24,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:25:24,871 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 3958 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3958 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:24,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3958 Valid, 2861 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:25:24,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2022-11-16 11:25:25,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 917. [2022-11-16 11:25:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3664804469273744) internal successors, (1223), 916 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:25,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1223 transitions. [2022-11-16 11:25:25,214 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1223 transitions. Word has length 97 [2022-11-16 11:25:25,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:25,214 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1223 transitions. [2022-11-16 11:25:25,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:25,214 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1223 transitions. [2022-11-16 11:25:25,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:25,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:25,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:25,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-16 11:25:25,215 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:25,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:25,216 INFO L85 PathProgramCache]: Analyzing trace with hash -952539292, now seen corresponding path program 1 times [2022-11-16 11:25:25,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:25,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950518535] [2022-11-16 11:25:25,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:25,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:25,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:25,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950518535] [2022-11-16 11:25:25,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950518535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:25,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:25,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:25:25,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096412435] [2022-11-16 11:25:25,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:25,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:25:25,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:25:25,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:25:25,486 INFO L87 Difference]: Start difference. First operand 917 states and 1223 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:28,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:28,598 INFO L93 Difference]: Finished difference Result 1848 states and 2545 transitions. [2022-11-16 11:25:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:25:28,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:28,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:28,600 INFO L225 Difference]: With dead ends: 1848 [2022-11-16 11:25:28,600 INFO L226 Difference]: Without dead ends: 1678 [2022-11-16 11:25:28,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:25:28,601 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 3790 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3790 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:28,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3790 Valid, 3367 Invalid, 2545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:25:28,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2022-11-16 11:25:29,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 917. [2022-11-16 11:25:29,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3642458100558659) internal successors, (1221), 916 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:29,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1221 transitions. [2022-11-16 11:25:29,082 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1221 transitions. Word has length 97 [2022-11-16 11:25:29,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:29,082 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1221 transitions. [2022-11-16 11:25:29,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:29,082 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1221 transitions. [2022-11-16 11:25:29,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:29,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:29,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:29,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-16 11:25:29,083 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:29,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:29,084 INFO L85 PathProgramCache]: Analyzing trace with hash -557790964, now seen corresponding path program 1 times [2022-11-16 11:25:29,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:29,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047295754] [2022-11-16 11:25:29,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:29,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:29,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:29,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:29,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047295754] [2022-11-16 11:25:29,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047295754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:29,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:29,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:25:29,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261000965] [2022-11-16 11:25:29,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:29,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:25:29,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:29,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:25:29,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:25:29,528 INFO L87 Difference]: Start difference. First operand 917 states and 1221 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:35,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:35,526 INFO L93 Difference]: Finished difference Result 3024 states and 4265 transitions. [2022-11-16 11:25:35,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:25:35,526 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:35,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:35,530 INFO L225 Difference]: With dead ends: 3024 [2022-11-16 11:25:35,531 INFO L226 Difference]: Without dead ends: 2814 [2022-11-16 11:25:35,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:25:35,532 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 6076 mSDsluCounter, 3660 mSDsCounter, 0 mSdLazyCounter, 3508 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6076 SdHoareTripleChecker+Valid, 4517 SdHoareTripleChecker+Invalid, 3712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:35,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6076 Valid, 4517 Invalid, 3712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3508 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 11:25:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2022-11-16 11:25:35,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 925. [2022-11-16 11:25:35,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.3610188261351053) internal successors, (1229), 924 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:35,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1229 transitions. [2022-11-16 11:25:35,974 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1229 transitions. Word has length 97 [2022-11-16 11:25:35,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:35,974 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1229 transitions. [2022-11-16 11:25:35,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:35,974 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1229 transitions. [2022-11-16 11:25:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:35,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:35,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:35,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-16 11:25:35,977 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:35,977 INFO L85 PathProgramCache]: Analyzing trace with hash 934856710, now seen corresponding path program 1 times [2022-11-16 11:25:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:35,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375649744] [2022-11-16 11:25:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:35,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:36,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:36,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:36,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375649744] [2022-11-16 11:25:36,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375649744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:36,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:36,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:25:36,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548090954] [2022-11-16 11:25:36,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:36,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:25:36,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:36,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:25:36,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:25:36,228 INFO L87 Difference]: Start difference. First operand 925 states and 1229 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:39,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:39,446 INFO L93 Difference]: Finished difference Result 1784 states and 2440 transitions. [2022-11-16 11:25:39,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:25:39,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:39,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:39,448 INFO L225 Difference]: With dead ends: 1784 [2022-11-16 11:25:39,448 INFO L226 Difference]: Without dead ends: 1638 [2022-11-16 11:25:39,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:25:39,449 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3826 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 2450 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3826 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 2456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:39,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3826 Valid, 3132 Invalid, 2456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2450 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:25:39,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-11-16 11:25:39,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 925. [2022-11-16 11:25:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.3588039867109634) internal successors, (1227), 924 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:39,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1227 transitions. [2022-11-16 11:25:39,882 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1227 transitions. Word has length 97 [2022-11-16 11:25:39,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:39,884 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1227 transitions. [2022-11-16 11:25:39,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:39,885 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1227 transitions. [2022-11-16 11:25:39,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:39,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:39,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:39,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-16 11:25:39,887 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:39,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:39,889 INFO L85 PathProgramCache]: Analyzing trace with hash -965955861, now seen corresponding path program 1 times [2022-11-16 11:25:39,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:39,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344990505] [2022-11-16 11:25:39,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:39,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:40,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:40,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:40,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344990505] [2022-11-16 11:25:40,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344990505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:40,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:40,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:25:40,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453927717] [2022-11-16 11:25:40,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:40,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:25:40,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:40,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:25:40,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:25:40,341 INFO L87 Difference]: Start difference. First operand 925 states and 1227 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:45,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:45,568 INFO L93 Difference]: Finished difference Result 2512 states and 3510 transitions. [2022-11-16 11:25:45,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:25:45,568 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:45,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:45,571 INFO L225 Difference]: With dead ends: 2512 [2022-11-16 11:25:45,571 INFO L226 Difference]: Without dead ends: 2362 [2022-11-16 11:25:45,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:25:45,572 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 6509 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6509 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:45,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6509 Valid, 2729 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:25:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-11-16 11:25:45,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 933. [2022-11-16 11:25:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 911 states have (on average 1.3556531284302964) internal successors, (1235), 932 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1235 transitions. [2022-11-16 11:25:45,975 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1235 transitions. Word has length 97 [2022-11-16 11:25:45,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:45,975 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1235 transitions. [2022-11-16 11:25:45,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:45,976 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1235 transitions. [2022-11-16 11:25:45,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:45,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:45,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:45,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-16 11:25:45,977 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:45,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:45,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1614649937, now seen corresponding path program 1 times [2022-11-16 11:25:45,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:45,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175728707] [2022-11-16 11:25:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:45,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:46,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:46,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:46,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175728707] [2022-11-16 11:25:46,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175728707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:46,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:46,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:25:46,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826125198] [2022-11-16 11:25:46,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:46,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:25:46,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:46,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:25:46,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:25:46,207 INFO L87 Difference]: Start difference. First operand 933 states and 1235 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:49,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:49,388 INFO L93 Difference]: Finished difference Result 1788 states and 2440 transitions. [2022-11-16 11:25:49,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:25:49,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:49,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:49,390 INFO L225 Difference]: With dead ends: 1788 [2022-11-16 11:25:49,390 INFO L226 Difference]: Without dead ends: 1638 [2022-11-16 11:25:49,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:25:49,391 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 3924 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 2251 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3924 SdHoareTripleChecker+Valid, 2913 SdHoareTripleChecker+Invalid, 2258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:49,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3924 Valid, 2913 Invalid, 2258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2251 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:25:49,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-11-16 11:25:49,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 933. [2022-11-16 11:25:49,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 911 states have (on average 1.353457738748628) internal successors, (1233), 932 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:49,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1233 transitions. [2022-11-16 11:25:49,803 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1233 transitions. Word has length 97 [2022-11-16 11:25:49,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:49,803 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1233 transitions. [2022-11-16 11:25:49,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:49,804 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1233 transitions. [2022-11-16 11:25:49,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:49,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:49,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:49,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-16 11:25:49,805 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:49,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:49,806 INFO L85 PathProgramCache]: Analyzing trace with hash 59659843, now seen corresponding path program 1 times [2022-11-16 11:25:49,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:49,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227585139] [2022-11-16 11:25:49,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:49,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:50,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:50,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:50,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227585139] [2022-11-16 11:25:50,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227585139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:50,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:50,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:25:50,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305207941] [2022-11-16 11:25:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:50,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:25:50,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:50,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:25:50,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:25:50,220 INFO L87 Difference]: Start difference. First operand 933 states and 1233 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:56,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:56,098 INFO L93 Difference]: Finished difference Result 2756 states and 3869 transitions. [2022-11-16 11:25:56,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:25:56,098 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:56,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:56,117 INFO L225 Difference]: With dead ends: 2756 [2022-11-16 11:25:56,118 INFO L226 Difference]: Without dead ends: 2592 [2022-11-16 11:25:56,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:25:56,119 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 7359 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 3164 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7359 SdHoareTripleChecker+Valid, 4041 SdHoareTripleChecker+Invalid, 3377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 3164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:56,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7359 Valid, 4041 Invalid, 3377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 3164 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 11:25:56,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2022-11-16 11:25:56,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 941. [2022-11-16 11:25:56,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 919 states have (on average 1.3503808487486397) internal successors, (1241), 940 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:56,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1241 transitions. [2022-11-16 11:25:56,536 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1241 transitions. Word has length 97 [2022-11-16 11:25:56,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:56,536 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1241 transitions. [2022-11-16 11:25:56,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:56,536 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1241 transitions. [2022-11-16 11:25:56,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:25:56,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:56,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:56,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-16 11:25:56,537 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:25:56,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:56,538 INFO L85 PathProgramCache]: Analyzing trace with hash 610975350, now seen corresponding path program 1 times [2022-11-16 11:25:56,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:56,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356557320] [2022-11-16 11:25:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:56,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:56,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:56,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:56,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356557320] [2022-11-16 11:25:56,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356557320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:56,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:56,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:25:56,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355268983] [2022-11-16 11:25:56,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:56,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:25:56,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:56,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:25:56,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:25:56,755 INFO L87 Difference]: Start difference. First operand 941 states and 1241 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:59,962 INFO L93 Difference]: Finished difference Result 1651 states and 2226 transitions. [2022-11-16 11:25:59,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:25:59,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:25:59,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:59,964 INFO L225 Difference]: With dead ends: 1651 [2022-11-16 11:25:59,964 INFO L226 Difference]: Without dead ends: 1646 [2022-11-16 11:25:59,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:25:59,964 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 3922 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3922 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:59,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3922 Valid, 2910 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:25:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-11-16 11:26:00,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 941. [2022-11-16 11:26:00,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 919 states have (on average 1.3482045701849836) internal successors, (1239), 940 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:00,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1239 transitions. [2022-11-16 11:26:00,382 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1239 transitions. Word has length 97 [2022-11-16 11:26:00,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:00,383 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1239 transitions. [2022-11-16 11:26:00,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:00,383 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1239 transitions. [2022-11-16 11:26:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:26:00,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:00,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:00,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-16 11:26:00,384 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:26:00,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:00,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1771794844, now seen corresponding path program 1 times [2022-11-16 11:26:00,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:00,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298579082] [2022-11-16 11:26:00,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:00,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:00,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:00,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298579082] [2022-11-16 11:26:00,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298579082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:00,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:00,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:26:00,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408879463] [2022-11-16 11:26:00,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:00,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:00,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:00,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:00,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:00,756 INFO L87 Difference]: Start difference. First operand 941 states and 1239 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:06,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:06,389 INFO L93 Difference]: Finished difference Result 2608 states and 3637 transitions. [2022-11-16 11:26:06,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:26:06,390 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:26:06,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:06,392 INFO L225 Difference]: With dead ends: 2608 [2022-11-16 11:26:06,392 INFO L226 Difference]: Without dead ends: 2591 [2022-11-16 11:26:06,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:26:06,393 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 7520 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7520 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:06,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7520 Valid, 3294 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 11:26:06,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2022-11-16 11:26:06,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 949. [2022-11-16 11:26:06,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 927 states have (on average 1.3451995685005393) internal successors, (1247), 948 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1247 transitions. [2022-11-16 11:26:06,881 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1247 transitions. Word has length 97 [2022-11-16 11:26:06,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:06,881 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1247 transitions. [2022-11-16 11:26:06,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:06,881 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1247 transitions. [2022-11-16 11:26:06,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:26:06,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:06,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:06,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-16 11:26:06,882 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:26:06,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:06,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1121558854, now seen corresponding path program 1 times [2022-11-16 11:26:06,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:06,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977001385] [2022-11-16 11:26:06,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:06,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:07,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:07,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977001385] [2022-11-16 11:26:07,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977001385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:07,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:07,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:26:07,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618230347] [2022-11-16 11:26:07,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:07,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:26:07,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:07,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:26:07,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:26:07,107 INFO L87 Difference]: Start difference. First operand 949 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:10,354 INFO L93 Difference]: Finished difference Result 1804 states and 2452 transitions. [2022-11-16 11:26:10,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:26:10,355 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:26:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:10,356 INFO L225 Difference]: With dead ends: 1804 [2022-11-16 11:26:10,356 INFO L226 Difference]: Without dead ends: 1654 [2022-11-16 11:26:10,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:26:10,357 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 3916 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3916 SdHoareTripleChecker+Valid, 2913 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:10,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3916 Valid, 2913 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:26:10,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-11-16 11:26:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 949. [2022-11-16 11:26:10,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 927 states have (on average 1.343042071197411) internal successors, (1245), 948 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1245 transitions. [2022-11-16 11:26:10,804 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1245 transitions. Word has length 97 [2022-11-16 11:26:10,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:10,804 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1245 transitions. [2022-11-16 11:26:10,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,804 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1245 transitions. [2022-11-16 11:26:10,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:26:10,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:10,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:10,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-16 11:26:10,806 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:26:10,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:10,806 INFO L85 PathProgramCache]: Analyzing trace with hash -144161225, now seen corresponding path program 1 times [2022-11-16 11:26:10,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:10,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938105857] [2022-11-16 11:26:10,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:10,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:11,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:11,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938105857] [2022-11-16 11:26:11,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938105857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:11,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:11,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:26:11,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957821441] [2022-11-16 11:26:11,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:11,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:11,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:11,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:11,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:11,198 INFO L87 Difference]: Start difference. First operand 949 states and 1245 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:16,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:16,628 INFO L93 Difference]: Finished difference Result 2384 states and 3298 transitions. [2022-11-16 11:26:16,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:26:16,628 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:26:16,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:16,631 INFO L225 Difference]: With dead ends: 2384 [2022-11-16 11:26:16,631 INFO L226 Difference]: Without dead ends: 2379 [2022-11-16 11:26:16,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:26:16,632 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 7825 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7825 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:16,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7825 Valid, 2726 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:26:16,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2022-11-16 11:26:17,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 957. [2022-11-16 11:26:17,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 935 states have (on average 1.3401069518716577) internal successors, (1253), 956 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:17,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1253 transitions. [2022-11-16 11:26:17,097 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1253 transitions. Word has length 97 [2022-11-16 11:26:17,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:17,097 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1253 transitions. [2022-11-16 11:26:17,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:17,098 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1253 transitions. [2022-11-16 11:26:17,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:26:17,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:17,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:17,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-16 11:26:17,099 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:26:17,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:17,099 INFO L85 PathProgramCache]: Analyzing trace with hash 733511318, now seen corresponding path program 1 times [2022-11-16 11:26:17,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:17,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034729871] [2022-11-16 11:26:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:17,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:17,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:17,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:17,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034729871] [2022-11-16 11:26:17,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034729871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:17,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:17,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:26:17,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981702515] [2022-11-16 11:26:17,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:17,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:17,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:17,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:17,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:17,457 INFO L87 Difference]: Start difference. First operand 957 states and 1253 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:23,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:23,452 INFO L93 Difference]: Finished difference Result 2752 states and 3853 transitions. [2022-11-16 11:26:23,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:26:23,453 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:26:23,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:23,455 INFO L225 Difference]: With dead ends: 2752 [2022-11-16 11:26:23,456 INFO L226 Difference]: Without dead ends: 2594 [2022-11-16 11:26:23,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:26:23,456 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 8502 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8502 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 2956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:23,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8502 Valid, 3527 Invalid, 2956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 2726 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 11:26:23,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2594 states. [2022-11-16 11:26:23,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2594 to 961. [2022-11-16 11:26:23,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 939 states have (on average 1.3386581469648562) internal successors, (1257), 960 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:23,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1257 transitions. [2022-11-16 11:26:23,916 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1257 transitions. Word has length 97 [2022-11-16 11:26:23,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:23,916 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1257 transitions. [2022-11-16 11:26:23,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:23,916 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1257 transitions. [2022-11-16 11:26:23,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:26:23,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:23,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:23,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-16 11:26:23,918 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:26:23,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:23,918 INFO L85 PathProgramCache]: Analyzing trace with hash -941278081, now seen corresponding path program 1 times [2022-11-16 11:26:23,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:23,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844505326] [2022-11-16 11:26:23,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:23,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:24,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:24,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:24,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844505326] [2022-11-16 11:26:24,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844505326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:24,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:24,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:26:24,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580514131] [2022-11-16 11:26:24,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:24,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:26:24,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:24,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:26:24,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:26:24,162 INFO L87 Difference]: Start difference. First operand 961 states and 1257 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:27,757 INFO L93 Difference]: Finished difference Result 1806 states and 2450 transitions. [2022-11-16 11:26:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:26:27,757 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:26:27,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:27,759 INFO L225 Difference]: With dead ends: 1806 [2022-11-16 11:26:27,759 INFO L226 Difference]: Without dead ends: 1658 [2022-11-16 11:26:27,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:26:27,761 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 3818 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3818 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:27,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3818 Valid, 3115 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:26:27,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-11-16 11:26:28,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 961. [2022-11-16 11:26:28,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 939 states have (on average 1.3375931842385516) internal successors, (1256), 960 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:28,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1256 transitions. [2022-11-16 11:26:28,451 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1256 transitions. Word has length 97 [2022-11-16 11:26:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:28,451 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1256 transitions. [2022-11-16 11:26:28,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:28,451 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1256 transitions. [2022-11-16 11:26:28,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:26:28,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:28,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:28,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-16 11:26:28,453 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:26:28,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:28,454 INFO L85 PathProgramCache]: Analyzing trace with hash -292584005, now seen corresponding path program 1 times [2022-11-16 11:26:28,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:28,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371732097] [2022-11-16 11:26:28,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:28,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:28,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:28,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:28,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371732097] [2022-11-16 11:26:28,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371732097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:28,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:28,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:26:28,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376890850] [2022-11-16 11:26:28,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:28,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:28,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:28,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:28,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:28,803 INFO L87 Difference]: Start difference. First operand 961 states and 1256 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:34,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:34,469 INFO L93 Difference]: Finished difference Result 2528 states and 3515 transitions. [2022-11-16 11:26:34,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:26:34,470 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:26:34,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:34,472 INFO L225 Difference]: With dead ends: 2528 [2022-11-16 11:26:34,472 INFO L226 Difference]: Without dead ends: 2380 [2022-11-16 11:26:34,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:26:34,474 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 7825 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7825 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 2460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:34,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7825 Valid, 2707 Invalid, 2460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:26:34,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2022-11-16 11:26:34,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 965. [2022-11-16 11:26:34,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 943 states have (on average 1.3361611876988335) internal successors, (1260), 964 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:34,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1260 transitions. [2022-11-16 11:26:34,968 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1260 transitions. Word has length 97 [2022-11-16 11:26:34,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:34,968 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1260 transitions. [2022-11-16 11:26:34,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1260 transitions. [2022-11-16 11:26:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:26:34,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:34,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:34,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-16 11:26:34,970 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:26:34,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:34,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1097943369, now seen corresponding path program 1 times [2022-11-16 11:26:34,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:34,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529687750] [2022-11-16 11:26:34,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:34,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:35,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:35,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529687750] [2022-11-16 11:26:35,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529687750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:35,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:35,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:26:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458217677] [2022-11-16 11:26:35,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:35,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:35,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:35,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:35,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:35,333 INFO L87 Difference]: Start difference. First operand 965 states and 1260 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:41,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:41,465 INFO L93 Difference]: Finished difference Result 2766 states and 3864 transitions. [2022-11-16 11:26:41,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:26:41,465 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:26:41,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:41,467 INFO L225 Difference]: With dead ends: 2766 [2022-11-16 11:26:41,467 INFO L226 Difference]: Without dead ends: 2603 [2022-11-16 11:26:41,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:26:41,469 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 7652 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 2491 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7652 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:41,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7652 Valid, 3222 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2491 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 11:26:41,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2022-11-16 11:26:42,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 969. [2022-11-16 11:26:42,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 947 states have (on average 1.334741288278775) internal successors, (1264), 968 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:42,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1264 transitions. [2022-11-16 11:26:42,051 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1264 transitions. Word has length 97 [2022-11-16 11:26:42,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:42,051 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1264 transitions. [2022-11-16 11:26:42,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:42,051 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1264 transitions. [2022-11-16 11:26:42,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:26:42,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:42,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:42,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-16 11:26:42,053 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:26:42,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:42,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1794930710, now seen corresponding path program 1 times [2022-11-16 11:26:42,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:42,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041324385] [2022-11-16 11:26:42,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:42,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:42,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:42,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:42,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041324385] [2022-11-16 11:26:42,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041324385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:42,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:42,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:26:42,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125999177] [2022-11-16 11:26:42,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:42,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:26:42,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:42,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:26:42,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:26:42,312 INFO L87 Difference]: Start difference. First operand 969 states and 1264 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:46,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:46,008 INFO L93 Difference]: Finished difference Result 1810 states and 2452 transitions. [2022-11-16 11:26:46,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:26:46,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:26:46,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:46,011 INFO L225 Difference]: With dead ends: 1810 [2022-11-16 11:26:46,011 INFO L226 Difference]: Without dead ends: 1662 [2022-11-16 11:26:46,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:26:46,012 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 3820 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3820 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:46,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3820 Valid, 3095 Invalid, 2398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:26:46,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-11-16 11:26:46,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 969. [2022-11-16 11:26:46,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 947 states have (on average 1.3336853220696938) internal successors, (1263), 968 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1263 transitions. [2022-11-16 11:26:46,511 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1263 transitions. Word has length 97 [2022-11-16 11:26:46,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:46,511 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1263 transitions. [2022-11-16 11:26:46,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:46,511 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1263 transitions. [2022-11-16 11:26:46,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:26:46,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:46,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:46,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-16 11:26:46,513 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:26:46,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:46,514 INFO L85 PathProgramCache]: Analyzing trace with hash 529690250, now seen corresponding path program 1 times [2022-11-16 11:26:46,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:46,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831565202] [2022-11-16 11:26:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:46,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:46,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:46,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831565202] [2022-11-16 11:26:46,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831565202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:46,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:46,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:26:46,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569468721] [2022-11-16 11:26:46,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:46,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:46,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:46,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:46,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:46,864 INFO L87 Difference]: Start difference. First operand 969 states and 1263 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:52,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:52,596 INFO L93 Difference]: Finished difference Result 2538 states and 3523 transitions. [2022-11-16 11:26:52,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:26:52,596 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:26:52,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:52,599 INFO L225 Difference]: With dead ends: 2538 [2022-11-16 11:26:52,599 INFO L226 Difference]: Without dead ends: 2387 [2022-11-16 11:26:52,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:26:52,600 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 7804 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7804 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 2437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:52,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7804 Valid, 2715 Invalid, 2437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:26:52,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2022-11-16 11:26:53,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 973. [2022-11-16 11:26:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 951 states have (on average 1.3322818086225026) internal successors, (1267), 972 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:53,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1267 transitions. [2022-11-16 11:26:53,131 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1267 transitions. Word has length 97 [2022-11-16 11:26:53,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:53,131 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1267 transitions. [2022-11-16 11:26:53,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:53,131 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1267 transitions. [2022-11-16 11:26:53,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:26:53,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:53,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:53,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-16 11:26:53,133 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:26:53,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:53,133 INFO L85 PathProgramCache]: Analyzing trace with hash -340300117, now seen corresponding path program 1 times [2022-11-16 11:26:53,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:53,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127365129] [2022-11-16 11:26:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:53,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:53,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:53,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:53,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127365129] [2022-11-16 11:26:53,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127365129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:53,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:53,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:26:53,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589086331] [2022-11-16 11:26:53,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:53,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:53,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:53,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:53,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:53,555 INFO L87 Difference]: Start difference. First operand 973 states and 1267 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:00,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:00,010 INFO L93 Difference]: Finished difference Result 2752 states and 3848 transitions. [2022-11-16 11:27:00,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:27:00,019 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:27:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:00,026 INFO L225 Difference]: With dead ends: 2752 [2022-11-16 11:27:00,026 INFO L226 Difference]: Without dead ends: 2598 [2022-11-16 11:27:00,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:27:00,028 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 8771 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8771 SdHoareTripleChecker+Valid, 3006 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:00,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8771 Valid, 3006 Invalid, 2588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:27:00,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2022-11-16 11:27:00,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 977. [2022-11-16 11:27:00,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 955 states have (on average 1.330890052356021) internal successors, (1271), 976 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:00,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1271 transitions. [2022-11-16 11:27:00,646 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1271 transitions. Word has length 97 [2022-11-16 11:27:00,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:00,647 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1271 transitions. [2022-11-16 11:27:00,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:00,647 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1271 transitions. [2022-11-16 11:27:00,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:27:00,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:00,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:00,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-16 11:27:00,650 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:00,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:00,650 INFO L85 PathProgramCache]: Analyzing trace with hash 67880146, now seen corresponding path program 1 times [2022-11-16 11:27:00,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:00,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924749617] [2022-11-16 11:27:00,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:00,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:00,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:00,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924749617] [2022-11-16 11:27:00,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924749617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:00,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:00,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:27:00,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593742340] [2022-11-16 11:27:00,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:00,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:00,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:00,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:00,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:27:00,928 INFO L87 Difference]: Start difference. First operand 977 states and 1271 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:04,675 INFO L93 Difference]: Finished difference Result 1812 states and 2452 transitions. [2022-11-16 11:27:04,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:27:04,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:27:04,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:04,677 INFO L225 Difference]: With dead ends: 1812 [2022-11-16 11:27:04,677 INFO L226 Difference]: Without dead ends: 1666 [2022-11-16 11:27:04,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:27:04,678 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 3804 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3804 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:04,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3804 Valid, 3144 Invalid, 2384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:27:04,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-11-16 11:27:05,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 977. [2022-11-16 11:27:05,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 955 states have (on average 1.3298429319371727) internal successors, (1270), 976 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1270 transitions. [2022-11-16 11:27:05,215 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1270 transitions. Word has length 97 [2022-11-16 11:27:05,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:05,215 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1270 transitions. [2022-11-16 11:27:05,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1270 transitions. [2022-11-16 11:27:05,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:27:05,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:05,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:05,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-16 11:27:05,217 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:05,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2055269860, now seen corresponding path program 1 times [2022-11-16 11:27:05,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:05,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953980712] [2022-11-16 11:27:05,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:05,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:05,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:05,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953980712] [2022-11-16 11:27:05,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953980712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:05,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:05,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:27:05,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341712454] [2022-11-16 11:27:05,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:05,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:27:05,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:05,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:27:05,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:27:05,622 INFO L87 Difference]: Start difference. First operand 977 states and 1270 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:11,744 INFO L93 Difference]: Finished difference Result 2532 states and 3515 transitions. [2022-11-16 11:27:11,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:27:11,744 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:27:11,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:11,747 INFO L225 Difference]: With dead ends: 2532 [2022-11-16 11:27:11,747 INFO L226 Difference]: Without dead ends: 2386 [2022-11-16 11:27:11,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:27:11,747 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 6479 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6479 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 2432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:11,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6479 Valid, 2691 Invalid, 2432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:27:11,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2022-11-16 11:27:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 981. [2022-11-16 11:27:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.3284671532846715) internal successors, (1274), 980 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1274 transitions. [2022-11-16 11:27:12,295 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1274 transitions. Word has length 97 [2022-11-16 11:27:12,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:12,296 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1274 transitions. [2022-11-16 11:27:12,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:12,296 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1274 transitions. [2022-11-16 11:27:12,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:27:12,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:12,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:12,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-16 11:27:12,298 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1434790026, now seen corresponding path program 1 times [2022-11-16 11:27:12,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:12,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177605810] [2022-11-16 11:27:12,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:12,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:12,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:12,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:12,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177605810] [2022-11-16 11:27:12,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177605810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:12,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:12,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:27:12,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852336638] [2022-11-16 11:27:12,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:12,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:12,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:12,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:12,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:27:12,531 INFO L87 Difference]: Start difference. First operand 981 states and 1274 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:16,351 INFO L93 Difference]: Finished difference Result 1814 states and 2452 transitions. [2022-11-16 11:27:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:27:16,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:27:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:16,354 INFO L225 Difference]: With dead ends: 1814 [2022-11-16 11:27:16,354 INFO L226 Difference]: Without dead ends: 1666 [2022-11-16 11:27:16,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:27:16,354 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 3911 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3911 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 2194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:16,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3911 Valid, 2881 Invalid, 2194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2187 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:27:16,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-11-16 11:27:16,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 981. [2022-11-16 11:27:16,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.3274244004171012) internal successors, (1273), 980 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:16,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1273 transitions. [2022-11-16 11:27:16,949 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1273 transitions. Word has length 97 [2022-11-16 11:27:16,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:16,949 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1273 transitions. [2022-11-16 11:27:16,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:16,949 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1273 transitions. [2022-11-16 11:27:16,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:27:16,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:16,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:16,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-16 11:27:16,951 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:16,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:16,951 INFO L85 PathProgramCache]: Analyzing trace with hash 240215847, now seen corresponding path program 1 times [2022-11-16 11:27:16,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:16,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308170250] [2022-11-16 11:27:16,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:16,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:17,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:17,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:17,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308170250] [2022-11-16 11:27:17,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308170250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:17,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:17,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:27:17,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637800903] [2022-11-16 11:27:17,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:17,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:27:17,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:17,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:27:17,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:27:17,449 INFO L87 Difference]: Start difference. First operand 981 states and 1273 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:24,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:24,721 INFO L93 Difference]: Finished difference Result 2764 states and 3853 transitions. [2022-11-16 11:27:24,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:27:24,721 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:27:24,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:24,724 INFO L225 Difference]: With dead ends: 2764 [2022-11-16 11:27:24,724 INFO L226 Difference]: Without dead ends: 2606 [2022-11-16 11:27:24,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:27:24,725 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 6408 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6408 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:24,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6408 Valid, 3484 Invalid, 2953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 2721 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 11:27:24,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-11-16 11:27:25,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 985. [2022-11-16 11:27:25,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 963 states have (on average 1.3260643821391485) internal successors, (1277), 984 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:25,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1277 transitions. [2022-11-16 11:27:25,361 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1277 transitions. Word has length 97 [2022-11-16 11:27:25,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:25,361 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1277 transitions. [2022-11-16 11:27:25,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:25,362 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1277 transitions. [2022-11-16 11:27:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:27:25,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:25,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:25,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-16 11:27:25,363 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:25,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:25,363 INFO L85 PathProgramCache]: Analyzing trace with hash -786095950, now seen corresponding path program 1 times [2022-11-16 11:27:25,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:25,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092278491] [2022-11-16 11:27:25,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:25,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:25,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:25,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092278491] [2022-11-16 11:27:25,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092278491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:25,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:25,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:27:25,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780996945] [2022-11-16 11:27:25,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:25,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:27:25,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:25,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:27:25,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:27:25,732 INFO L87 Difference]: Start difference. First operand 985 states and 1277 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:32,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:32,493 INFO L93 Difference]: Finished difference Result 2540 states and 3521 transitions. [2022-11-16 11:27:32,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:27:32,499 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:27:32,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:32,501 INFO L225 Difference]: With dead ends: 2540 [2022-11-16 11:27:32,501 INFO L226 Difference]: Without dead ends: 2392 [2022-11-16 11:27:32,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:27:32,502 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 7758 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7758 SdHoareTripleChecker+Valid, 3277 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:32,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7758 Valid, 3277 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 2674 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 11:27:32,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2022-11-16 11:27:33,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 989. [2022-11-16 11:27:33,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 967 states have (on average 1.3247156153050672) internal successors, (1281), 988 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1281 transitions. [2022-11-16 11:27:33,109 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1281 transitions. Word has length 97 [2022-11-16 11:27:33,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:33,110 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 1281 transitions. [2022-11-16 11:27:33,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:33,110 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1281 transitions. [2022-11-16 11:27:33,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:27:33,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:33,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:33,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-16 11:27:33,112 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:33,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:33,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1852246538, now seen corresponding path program 1 times [2022-11-16 11:27:33,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:33,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945854859] [2022-11-16 11:27:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:33,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:33,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:33,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:33,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945854859] [2022-11-16 11:27:33,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945854859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:33,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:33,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:27:33,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612146935] [2022-11-16 11:27:33,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:33,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:33,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:33,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:33,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:27:33,362 INFO L87 Difference]: Start difference. First operand 989 states and 1281 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:37,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:37,397 INFO L93 Difference]: Finished difference Result 1816 states and 2452 transitions. [2022-11-16 11:27:37,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:27:37,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-11-16 11:27:37,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:37,399 INFO L225 Difference]: With dead ends: 1816 [2022-11-16 11:27:37,400 INFO L226 Difference]: Without dead ends: 1670 [2022-11-16 11:27:37,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:27:37,400 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 3908 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 2177 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3908 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:37,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3908 Valid, 2874 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2177 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:27:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-11-16 11:27:38,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 989. [2022-11-16 11:27:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 967 states have (on average 1.3236814891416753) internal successors, (1280), 988 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:38,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1280 transitions. [2022-11-16 11:27:38,207 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1280 transitions. Word has length 97 [2022-11-16 11:27:38,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:38,207 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 1280 transitions. [2022-11-16 11:27:38,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:38,207 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1280 transitions. [2022-11-16 11:27:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:27:38,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:38,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:38,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-16 11:27:38,209 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:38,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:38,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1391256008, now seen corresponding path program 1 times [2022-11-16 11:27:38,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:38,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854021604] [2022-11-16 11:27:38,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:38,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:38,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:38,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:38,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854021604] [2022-11-16 11:27:38,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854021604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:38,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:38,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:27:38,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235962032] [2022-11-16 11:27:38,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:38,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:38,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:38,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:38,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:27:38,451 INFO L87 Difference]: Start difference. First operand 989 states and 1280 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:27:42,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:42,124 INFO L93 Difference]: Finished difference Result 1824 states and 2460 transitions. [2022-11-16 11:27:42,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:27:42,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:27:42,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:42,127 INFO L225 Difference]: With dead ends: 1824 [2022-11-16 11:27:42,127 INFO L226 Difference]: Without dead ends: 1670 [2022-11-16 11:27:42,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:27:42,128 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 2344 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2344 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:42,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2344 Valid, 2430 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:27:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-11-16 11:27:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 981. [2022-11-16 11:27:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.32429614181439) internal successors, (1270), 980 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:42,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1270 transitions. [2022-11-16 11:27:42,795 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1270 transitions. Word has length 98 [2022-11-16 11:27:42,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:42,795 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1270 transitions. [2022-11-16 11:27:42,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:27:42,795 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1270 transitions. [2022-11-16 11:27:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:27:42,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:42,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:42,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-16 11:27:42,797 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:42,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:42,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2004213255, now seen corresponding path program 1 times [2022-11-16 11:27:42,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:42,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247024823] [2022-11-16 11:27:42,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:42,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:43,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:43,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247024823] [2022-11-16 11:27:43,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247024823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:43,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:43,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:27:43,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861149546] [2022-11-16 11:27:43,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:43,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:43,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:43,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:43,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:27:43,009 INFO L87 Difference]: Start difference. First operand 981 states and 1270 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:27:46,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:46,826 INFO L93 Difference]: Finished difference Result 1880 states and 2545 transitions. [2022-11-16 11:27:46,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:27:46,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:27:46,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:46,829 INFO L225 Difference]: With dead ends: 1880 [2022-11-16 11:27:46,829 INFO L226 Difference]: Without dead ends: 1710 [2022-11-16 11:27:46,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:27:46,829 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 3370 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3370 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 2000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:46,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3370 Valid, 2675 Invalid, 2000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:27:46,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-11-16 11:27:47,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 973. [2022-11-16 11:27:47,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 951 states have (on average 1.3249211356466877) internal successors, (1260), 972 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1260 transitions. [2022-11-16 11:27:47,459 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1260 transitions. Word has length 98 [2022-11-16 11:27:47,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:47,460 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1260 transitions. [2022-11-16 11:27:47,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:27:47,460 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1260 transitions. [2022-11-16 11:27:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:27:47,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:47,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:47,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-16 11:27:47,461 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:47,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:47,461 INFO L85 PathProgramCache]: Analyzing trace with hash 223226210, now seen corresponding path program 1 times [2022-11-16 11:27:47,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:47,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365272182] [2022-11-16 11:27:47,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:47,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:47,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:47,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365272182] [2022-11-16 11:27:47,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365272182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:47,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:47,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:27:47,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671264631] [2022-11-16 11:27:47,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:47,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:47,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:47,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:47,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:27:47,670 INFO L87 Difference]: Start difference. First operand 973 states and 1260 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:27:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:51,770 INFO L93 Difference]: Finished difference Result 2000 states and 2694 transitions. [2022-11-16 11:27:51,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:27:51,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:27:51,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:51,772 INFO L225 Difference]: With dead ends: 2000 [2022-11-16 11:27:51,772 INFO L226 Difference]: Without dead ends: 1790 [2022-11-16 11:27:51,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:27:51,773 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 2905 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 2273 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2905 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:51,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2905 Valid, 3123 Invalid, 2280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2273 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:27:51,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2022-11-16 11:27:52,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 965. [2022-11-16 11:27:52,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 943 states have (on average 1.325556733828208) internal successors, (1250), 964 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1250 transitions. [2022-11-16 11:27:52,593 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1250 transitions. Word has length 98 [2022-11-16 11:27:52,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:52,593 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1250 transitions. [2022-11-16 11:27:52,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:27:52,594 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1250 transitions. [2022-11-16 11:27:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:27:52,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:52,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:52,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-16 11:27:52,596 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:52,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:52,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1972960612, now seen corresponding path program 1 times [2022-11-16 11:27:52,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:52,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310080] [2022-11-16 11:27:52,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:52,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:52,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:52,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310080] [2022-11-16 11:27:52,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:52,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:52,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:27:52,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859649012] [2022-11-16 11:27:52,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:52,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:52,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:52,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:52,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:27:52,791 INFO L87 Difference]: Start difference. First operand 965 states and 1250 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:27:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:56,658 INFO L93 Difference]: Finished difference Result 1866 states and 2524 transitions. [2022-11-16 11:27:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:27:56,659 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:27:56,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:56,661 INFO L225 Difference]: With dead ends: 1866 [2022-11-16 11:27:56,661 INFO L226 Difference]: Without dead ends: 1702 [2022-11-16 11:27:56,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:27:56,662 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 3058 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3058 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:56,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3058 Valid, 2888 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:27:56,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2022-11-16 11:27:57,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 957. [2022-11-16 11:27:57,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 935 states have (on average 1.3262032085561497) internal successors, (1240), 956 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:57,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1240 transitions. [2022-11-16 11:27:57,333 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1240 transitions. Word has length 98 [2022-11-16 11:27:57,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:57,333 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1240 transitions. [2022-11-16 11:27:57,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:27:57,333 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1240 transitions. [2022-11-16 11:27:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:27:57,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:57,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:57,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-16 11:27:57,334 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:27:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:57,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1538428317, now seen corresponding path program 1 times [2022-11-16 11:27:57,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:57,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200003185] [2022-11-16 11:27:57,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:57,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:57,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:57,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200003185] [2022-11-16 11:27:57,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200003185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:57,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:57,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:27:57,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948966558] [2022-11-16 11:27:57,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:57,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:57,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:57,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:57,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:27:57,522 INFO L87 Difference]: Start difference. First operand 957 states and 1240 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:01,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:01,423 INFO L93 Difference]: Finished difference Result 1796 states and 2423 transitions. [2022-11-16 11:28:01,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:01,423 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:01,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:01,425 INFO L225 Difference]: With dead ends: 1796 [2022-11-16 11:28:01,425 INFO L226 Difference]: Without dead ends: 1646 [2022-11-16 11:28:01,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:01,426 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 3222 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:01,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3222 Valid, 2565 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:01,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-11-16 11:28:02,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 949. [2022-11-16 11:28:02,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 927 states have (on average 1.3268608414239482) internal successors, (1230), 948 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1230 transitions. [2022-11-16 11:28:02,054 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1230 transitions. Word has length 98 [2022-11-16 11:28:02,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:02,054 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1230 transitions. [2022-11-16 11:28:02,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:02,054 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1230 transitions. [2022-11-16 11:28:02,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:02,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:02,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:02,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-16 11:28:02,056 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:02,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:02,056 INFO L85 PathProgramCache]: Analyzing trace with hash -440198232, now seen corresponding path program 1 times [2022-11-16 11:28:02,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:02,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888029401] [2022-11-16 11:28:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:02,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:02,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:02,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:02,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888029401] [2022-11-16 11:28:02,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888029401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:02,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:02,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:02,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786648703] [2022-11-16 11:28:02,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:02,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:02,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:02,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:02,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:02,247 INFO L87 Difference]: Start difference. First operand 949 states and 1230 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:06,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:06,051 INFO L93 Difference]: Finished difference Result 1651 states and 2201 transitions. [2022-11-16 11:28:06,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:06,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:06,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:06,053 INFO L225 Difference]: With dead ends: 1651 [2022-11-16 11:28:06,053 INFO L226 Difference]: Without dead ends: 1646 [2022-11-16 11:28:06,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:06,054 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 4189 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4189 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:06,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4189 Valid, 2583 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:06,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-11-16 11:28:06,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 941. [2022-11-16 11:28:06,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 919 states have (on average 1.3275299238302503) internal successors, (1220), 940 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1220 transitions. [2022-11-16 11:28:06,709 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1220 transitions. Word has length 98 [2022-11-16 11:28:06,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:06,710 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1220 transitions. [2022-11-16 11:28:06,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:06,710 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1220 transitions. [2022-11-16 11:28:06,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:06,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:06,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:06,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-16 11:28:06,711 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:06,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:06,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1339696265, now seen corresponding path program 1 times [2022-11-16 11:28:06,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:06,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12619917] [2022-11-16 11:28:06,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:06,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:06,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:06,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12619917] [2022-11-16 11:28:06,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12619917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:06,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:06,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:06,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004770207] [2022-11-16 11:28:06,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:06,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:06,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:06,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:06,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:06,917 INFO L87 Difference]: Start difference. First operand 941 states and 1220 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:10,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:10,870 INFO L93 Difference]: Finished difference Result 1703 states and 2279 transitions. [2022-11-16 11:28:10,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:10,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:10,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:10,873 INFO L225 Difference]: With dead ends: 1703 [2022-11-16 11:28:10,873 INFO L226 Difference]: Without dead ends: 1686 [2022-11-16 11:28:10,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:10,874 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 2996 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:10,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 2934 Invalid, 2135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2128 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:10,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-11-16 11:28:11,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 933. [2022-11-16 11:28:11,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 911 states have (on average 1.3282107574094402) internal successors, (1210), 932 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:11,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1210 transitions. [2022-11-16 11:28:11,624 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1210 transitions. Word has length 98 [2022-11-16 11:28:11,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:11,624 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1210 transitions. [2022-11-16 11:28:11,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1210 transitions. [2022-11-16 11:28:11,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:11,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:11,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:11,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-16 11:28:11,625 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:11,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:11,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1736566412, now seen corresponding path program 1 times [2022-11-16 11:28:11,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:11,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324752125] [2022-11-16 11:28:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:11,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:11,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:11,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324752125] [2022-11-16 11:28:11,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324752125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:11,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:11,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:11,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430496639] [2022-11-16 11:28:11,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:11,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:11,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:11,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:11,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:11,904 INFO L87 Difference]: Start difference. First operand 933 states and 1210 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:15,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:15,925 INFO L93 Difference]: Finished difference Result 1844 states and 2493 transitions. [2022-11-16 11:28:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:15,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:15,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:15,928 INFO L225 Difference]: With dead ends: 1844 [2022-11-16 11:28:15,928 INFO L226 Difference]: Without dead ends: 1686 [2022-11-16 11:28:15,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:15,929 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 2959 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2959 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:15,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2959 Valid, 2980 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2148 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:15,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-11-16 11:28:16,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 929. [2022-11-16 11:28:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 907 states have (on average 1.328555678059537) internal successors, (1205), 928 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:16,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1205 transitions. [2022-11-16 11:28:16,544 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1205 transitions. Word has length 98 [2022-11-16 11:28:16,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:16,544 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1205 transitions. [2022-11-16 11:28:16,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:16,544 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1205 transitions. [2022-11-16 11:28:16,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:16,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:16,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:16,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-16 11:28:16,546 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:16,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:16,546 INFO L85 PathProgramCache]: Analyzing trace with hash 952508426, now seen corresponding path program 1 times [2022-11-16 11:28:16,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:16,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433895520] [2022-11-16 11:28:16,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:16,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:16,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:16,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:16,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433895520] [2022-11-16 11:28:16,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433895520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:16,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:16,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:16,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117915298] [2022-11-16 11:28:16,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:16,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:16,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:16,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:16,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:16,757 INFO L87 Difference]: Start difference. First operand 929 states and 1205 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:20,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:20,828 INFO L93 Difference]: Finished difference Result 1782 states and 2402 transitions. [2022-11-16 11:28:20,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:20,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:20,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:20,830 INFO L225 Difference]: With dead ends: 1782 [2022-11-16 11:28:20,830 INFO L226 Difference]: Without dead ends: 1634 [2022-11-16 11:28:20,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:20,831 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 2147 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2147 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:20,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2147 Valid, 2668 Invalid, 2026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:20,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-11-16 11:28:21,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 925. [2022-11-16 11:28:21,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.3289036544850499) internal successors, (1200), 924 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:21,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1200 transitions. [2022-11-16 11:28:21,466 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1200 transitions. Word has length 98 [2022-11-16 11:28:21,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:21,466 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1200 transitions. [2022-11-16 11:28:21,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:21,466 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1200 transitions. [2022-11-16 11:28:21,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:21,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:21,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:21,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-16 11:28:21,467 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:21,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:21,468 INFO L85 PathProgramCache]: Analyzing trace with hash -785107352, now seen corresponding path program 1 times [2022-11-16 11:28:21,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:21,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966674487] [2022-11-16 11:28:21,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:21,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:21,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:21,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966674487] [2022-11-16 11:28:21,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966674487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:21,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:21,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:21,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731574923] [2022-11-16 11:28:21,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:21,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:21,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:21,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:21,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:21,711 INFO L87 Difference]: Start difference. First operand 925 states and 1200 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:25,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:25,766 INFO L93 Difference]: Finished difference Result 1780 states and 2399 transitions. [2022-11-16 11:28:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:25,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:25,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:25,768 INFO L225 Difference]: With dead ends: 1780 [2022-11-16 11:28:25,768 INFO L226 Difference]: Without dead ends: 1634 [2022-11-16 11:28:25,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:25,769 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 3782 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3782 SdHoareTripleChecker+Valid, 3078 SdHoareTripleChecker+Invalid, 2249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:25,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3782 Valid, 3078 Invalid, 2249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:28:25,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-11-16 11:28:26,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 925. [2022-11-16 11:28:26,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.327796234772979) internal successors, (1199), 924 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:26,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1199 transitions. [2022-11-16 11:28:26,379 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1199 transitions. Word has length 98 [2022-11-16 11:28:26,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:26,379 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1199 transitions. [2022-11-16 11:28:26,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:26,379 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1199 transitions. [2022-11-16 11:28:26,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:26,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:26,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:26,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-16 11:28:26,380 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:26,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:26,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1025638504, now seen corresponding path program 1 times [2022-11-16 11:28:26,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:26,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882270167] [2022-11-16 11:28:26,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:26,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:26,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:26,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882270167] [2022-11-16 11:28:26,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882270167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:26,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:26,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:26,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448478584] [2022-11-16 11:28:26,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:26,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:26,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:26,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:26,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:26,672 INFO L87 Difference]: Start difference. First operand 925 states and 1199 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:30,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:30,714 INFO L93 Difference]: Finished difference Result 1785 states and 2403 transitions. [2022-11-16 11:28:30,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:30,714 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:30,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:30,716 INFO L225 Difference]: With dead ends: 1785 [2022-11-16 11:28:30,716 INFO L226 Difference]: Without dead ends: 1634 [2022-11-16 11:28:30,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:30,717 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 4049 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4049 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:30,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4049 Valid, 2685 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:30,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-11-16 11:28:31,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 921. [2022-11-16 11:28:31,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.328142380422692) internal successors, (1194), 920 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:31,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1194 transitions. [2022-11-16 11:28:31,360 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1194 transitions. Word has length 98 [2022-11-16 11:28:31,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:31,360 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1194 transitions. [2022-11-16 11:28:31,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:31,360 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1194 transitions. [2022-11-16 11:28:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:31,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:31,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:31,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-16 11:28:31,362 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:31,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:31,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1925136537, now seen corresponding path program 1 times [2022-11-16 11:28:31,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:31,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053461942] [2022-11-16 11:28:31,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:31,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:31,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:31,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053461942] [2022-11-16 11:28:31,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053461942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:31,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:31,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:31,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324427380] [2022-11-16 11:28:31,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:31,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:31,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:31,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:31,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:31,552 INFO L87 Difference]: Start difference. First operand 921 states and 1194 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:35,483 INFO L93 Difference]: Finished difference Result 1841 states and 2486 transitions. [2022-11-16 11:28:35,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:35,483 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:35,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:35,485 INFO L225 Difference]: With dead ends: 1841 [2022-11-16 11:28:35,485 INFO L226 Difference]: Without dead ends: 1678 [2022-11-16 11:28:35,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:35,486 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 2919 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 2152 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:35,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2919 Valid, 3018 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2152 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:35,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2022-11-16 11:28:36,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 917. [2022-11-16 11:28:36,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3284916201117318) internal successors, (1189), 916 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:36,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1189 transitions. [2022-11-16 11:28:36,111 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1189 transitions. Word has length 98 [2022-11-16 11:28:36,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:36,111 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1189 transitions. [2022-11-16 11:28:36,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:36,112 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1189 transitions. [2022-11-16 11:28:36,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:36,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:36,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:36,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-16 11:28:36,113 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:36,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:36,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1897114906, now seen corresponding path program 1 times [2022-11-16 11:28:36,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:36,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437960227] [2022-11-16 11:28:36,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:36,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:36,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:36,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:36,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437960227] [2022-11-16 11:28:36,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437960227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:36,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:36,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:36,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333399906] [2022-11-16 11:28:36,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:36,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:36,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:36,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:36,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:36,345 INFO L87 Difference]: Start difference. First operand 917 states and 1189 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:40,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:40,411 INFO L93 Difference]: Finished difference Result 1777 states and 2393 transitions. [2022-11-16 11:28:40,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:40,412 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:40,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:40,413 INFO L225 Difference]: With dead ends: 1777 [2022-11-16 11:28:40,413 INFO L226 Difference]: Without dead ends: 1630 [2022-11-16 11:28:40,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:40,414 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 3749 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3749 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 2262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:40,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3749 Valid, 3146 Invalid, 2262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:28:40,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2022-11-16 11:28:41,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 917. [2022-11-16 11:28:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3273743016759776) internal successors, (1188), 916 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1188 transitions. [2022-11-16 11:28:41,062 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1188 transitions. Word has length 98 [2022-11-16 11:28:41,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:41,062 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1188 transitions. [2022-11-16 11:28:41,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:41,062 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1188 transitions. [2022-11-16 11:28:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:41,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:41,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:41,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-16 11:28:41,064 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:41,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:41,064 INFO L85 PathProgramCache]: Analyzing trace with hash 997428961, now seen corresponding path program 1 times [2022-11-16 11:28:41,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:41,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264186732] [2022-11-16 11:28:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:41,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:41,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:41,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:41,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264186732] [2022-11-16 11:28:41,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264186732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:41,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:41,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:41,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286206889] [2022-11-16 11:28:41,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:41,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:41,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:41,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:41,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:41,338 INFO L87 Difference]: Start difference. First operand 917 states and 1188 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:45,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:45,391 INFO L93 Difference]: Finished difference Result 1776 states and 2391 transitions. [2022-11-16 11:28:45,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:45,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:45,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:45,393 INFO L225 Difference]: With dead ends: 1776 [2022-11-16 11:28:45,393 INFO L226 Difference]: Without dead ends: 1630 [2022-11-16 11:28:45,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:45,394 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 3449 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3449 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 2036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:45,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3449 Valid, 2738 Invalid, 2036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:45,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2022-11-16 11:28:46,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 913. [2022-11-16 11:28:46,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3277216610549945) internal successors, (1183), 912 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:46,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1183 transitions. [2022-11-16 11:28:46,041 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1183 transitions. Word has length 98 [2022-11-16 11:28:46,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:46,041 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1183 transitions. [2022-11-16 11:28:46,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:46,042 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1183 transitions. [2022-11-16 11:28:46,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:46,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:46,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:46,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-16 11:28:46,043 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:46,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:46,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1735285257, now seen corresponding path program 1 times [2022-11-16 11:28:46,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:46,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961864981] [2022-11-16 11:28:46,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:46,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:46,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:46,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:46,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961864981] [2022-11-16 11:28:46,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961864981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:46,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:46,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:46,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399100020] [2022-11-16 11:28:46,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:46,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:46,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:46,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:46,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:46,238 INFO L87 Difference]: Start difference. First operand 913 states and 1183 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:50,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:50,476 INFO L93 Difference]: Finished difference Result 1828 states and 2470 transitions. [2022-11-16 11:28:50,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:50,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:50,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:50,478 INFO L225 Difference]: With dead ends: 1828 [2022-11-16 11:28:50,478 INFO L226 Difference]: Without dead ends: 1674 [2022-11-16 11:28:50,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:50,479 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 2879 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2879 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:50,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2879 Valid, 3062 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:50,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-11-16 11:28:51,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 909. [2022-11-16 11:28:51,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3280721533258173) internal successors, (1178), 908 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:51,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1178 transitions. [2022-11-16 11:28:51,137 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1178 transitions. Word has length 98 [2022-11-16 11:28:51,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:51,138 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1178 transitions. [2022-11-16 11:28:51,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:51,138 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1178 transitions. [2022-11-16 11:28:51,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:51,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:51,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:51,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-16 11:28:51,139 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:51,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash -670691083, now seen corresponding path program 1 times [2022-11-16 11:28:51,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:51,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149756671] [2022-11-16 11:28:51,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:51,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:51,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:51,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:51,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149756671] [2022-11-16 11:28:51,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149756671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:51,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:51,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:51,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564550685] [2022-11-16 11:28:51,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:51,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:51,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:51,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:51,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:51,341 INFO L87 Difference]: Start difference. First operand 909 states and 1178 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:55,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:55,471 INFO L93 Difference]: Finished difference Result 1832 states and 2472 transitions. [2022-11-16 11:28:55,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:55,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:28:55,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:55,473 INFO L225 Difference]: With dead ends: 1832 [2022-11-16 11:28:55,474 INFO L226 Difference]: Without dead ends: 1674 [2022-11-16 11:28:55,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:28:55,474 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 1963 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:55,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 3088 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:55,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-11-16 11:28:56,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 905. [2022-11-16 11:28:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3284258210645528) internal successors, (1173), 904 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1173 transitions. [2022-11-16 11:28:56,112 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1173 transitions. Word has length 98 [2022-11-16 11:28:56,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:56,112 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1173 transitions. [2022-11-16 11:28:56,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:28:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1173 transitions. [2022-11-16 11:28:56,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:28:56,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:56,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:56,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-16 11:28:56,114 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:28:56,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:56,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1454965543, now seen corresponding path program 1 times [2022-11-16 11:28:56,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:56,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319955552] [2022-11-16 11:28:56,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:56,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:56,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:56,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319955552] [2022-11-16 11:28:56,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319955552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:56,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:56,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:28:56,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148749275] [2022-11-16 11:28:56,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:56,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:28:56,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:56,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:28:56,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:28:56,326 INFO L87 Difference]: Start difference. First operand 905 states and 1173 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:29:00,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:00,613 INFO L93 Difference]: Finished difference Result 1770 states and 2382 transitions. [2022-11-16 11:29:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:29:00,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-11-16 11:29:00,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:00,615 INFO L225 Difference]: With dead ends: 1770 [2022-11-16 11:29:00,615 INFO L226 Difference]: Without dead ends: 1622 [2022-11-16 11:29:00,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:29:00,615 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 2076 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:00,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2076 Valid, 2801 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:29:00,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-16 11:29:01,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 901. [2022-11-16 11:29:01,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.328782707622298) internal successors, (1168), 900 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1168 transitions. [2022-11-16 11:29:01,392 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1168 transitions. Word has length 98 [2022-11-16 11:29:01,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:01,392 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1168 transitions. [2022-11-16 11:29:01,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-11-16 11:29:01,392 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1168 transitions. [2022-11-16 11:29:01,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:29:01,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:01,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:01,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-16 11:29:01,394 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:29:01,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash -472216631, now seen corresponding path program 1 times [2022-11-16 11:29:01,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:01,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715043892] [2022-11-16 11:29:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:01,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:02,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:02,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715043892] [2022-11-16 11:29:02,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715043892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:02,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:02,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:02,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340102732] [2022-11-16 11:29:02,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:02,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:29:02,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:02,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:29:02,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:29:02,276 INFO L87 Difference]: Start difference. First operand 901 states and 1168 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:09,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:09,489 INFO L93 Difference]: Finished difference Result 3204 states and 4407 transitions. [2022-11-16 11:29:09,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:29:09,490 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-11-16 11:29:09,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:09,492 INFO L225 Difference]: With dead ends: 3204 [2022-11-16 11:29:09,493 INFO L226 Difference]: Without dead ends: 3012 [2022-11-16 11:29:09,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:29:09,493 INFO L413 NwaCegarLoop]: 1706 mSDtfsCounter, 3988 mSDsluCounter, 11616 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3988 SdHoareTripleChecker+Valid, 13322 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:09,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3988 Valid, 13322 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:29:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2022-11-16 11:29:10,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 855. [2022-11-16 11:29:10,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.3273381294964028) internal successors, (1107), 854 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:10,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1107 transitions. [2022-11-16 11:29:10,190 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1107 transitions. Word has length 99 [2022-11-16 11:29:10,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:10,191 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 1107 transitions. [2022-11-16 11:29:10,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:10,191 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1107 transitions. [2022-11-16 11:29:10,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:29:10,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:10,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:10,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-16 11:29:10,192 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:29:10,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:10,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1755253690, now seen corresponding path program 1 times [2022-11-16 11:29:10,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:10,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544200494] [2022-11-16 11:29:10,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:10,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:11,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:11,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:11,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544200494] [2022-11-16 11:29:11,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544200494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:11,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:11,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:29:11,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069521209] [2022-11-16 11:29:11,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:11,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:29:11,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:11,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:29:11,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:29:11,385 INFO L87 Difference]: Start difference. First operand 855 states and 1107 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:17,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:17,737 INFO L93 Difference]: Finished difference Result 2471 states and 3355 transitions. [2022-11-16 11:29:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 11:29:17,738 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-11-16 11:29:17,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:17,740 INFO L225 Difference]: With dead ends: 2471 [2022-11-16 11:29:17,740 INFO L226 Difference]: Without dead ends: 2267 [2022-11-16 11:29:17,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-11-16 11:29:17,740 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 5645 mSDsluCounter, 10521 mSDsCounter, 0 mSdLazyCounter, 2079 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5645 SdHoareTripleChecker+Valid, 12062 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:17,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5645 Valid, 12062 Invalid, 2088 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2079 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:29:17,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2022-11-16 11:29:18,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 855. [2022-11-16 11:29:18,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 834 states have (on average 1.3249400479616307) internal successors, (1105), 854 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:18,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1105 transitions. [2022-11-16 11:29:18,482 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1105 transitions. Word has length 99 [2022-11-16 11:29:18,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:18,482 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 1105 transitions. [2022-11-16 11:29:18,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:18,482 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1105 transitions. [2022-11-16 11:29:18,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:29:18,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:18,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:18,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-16 11:29:18,483 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:29:18,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:18,483 INFO L85 PathProgramCache]: Analyzing trace with hash 134385077, now seen corresponding path program 1 times [2022-11-16 11:29:18,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:18,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446466498] [2022-11-16 11:29:18,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:18,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:19,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:19,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446466498] [2022-11-16 11:29:19,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446466498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:19,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:19,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:29:19,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794065321] [2022-11-16 11:29:19,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:19,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:29:19,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:19,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:29:19,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:29:19,176 INFO L87 Difference]: Start difference. First operand 855 states and 1105 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:22,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:22,933 INFO L93 Difference]: Finished difference Result 1406 states and 1846 transitions. [2022-11-16 11:29:22,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:29:22,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-11-16 11:29:22,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:22,935 INFO L225 Difference]: With dead ends: 1406 [2022-11-16 11:29:22,935 INFO L226 Difference]: Without dead ends: 1254 [2022-11-16 11:29:22,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:29:22,936 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 3915 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 2119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 4458 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:22,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3915 Valid, 4458 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2119 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:29:22,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2022-11-16 11:29:23,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 845. [2022-11-16 11:29:23,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 825 states have (on average 1.3212121212121213) internal successors, (1090), 844 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:23,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1090 transitions. [2022-11-16 11:29:23,711 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1090 transitions. Word has length 99 [2022-11-16 11:29:23,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:23,711 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1090 transitions. [2022-11-16 11:29:23,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:23,712 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1090 transitions. [2022-11-16 11:29:23,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:29:23,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:23,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:23,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-16 11:29:23,713 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:29:23,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:23,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1796136237, now seen corresponding path program 1 times [2022-11-16 11:29:23,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:23,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780466158] [2022-11-16 11:29:23,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:23,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:24,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:24,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:24,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780466158] [2022-11-16 11:29:24,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780466158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:24,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:24,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:24,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571318046] [2022-11-16 11:29:24,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:24,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:29:24,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:24,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:29:24,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:29:24,437 INFO L87 Difference]: Start difference. First operand 845 states and 1090 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:32,320 INFO L93 Difference]: Finished difference Result 3006 states and 4142 transitions. [2022-11-16 11:29:32,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:29:32,320 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-11-16 11:29:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:32,323 INFO L225 Difference]: With dead ends: 3006 [2022-11-16 11:29:32,323 INFO L226 Difference]: Without dead ends: 2806 [2022-11-16 11:29:32,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:29:32,324 INFO L413 NwaCegarLoop]: 1686 mSDtfsCounter, 4346 mSDsluCounter, 11085 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4346 SdHoareTripleChecker+Valid, 12771 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:32,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4346 Valid, 12771 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:29:32,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2022-11-16 11:29:33,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 791. [2022-11-16 11:29:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 774 states have (on average 1.3165374677002584) internal successors, (1019), 790 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:33,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1019 transitions. [2022-11-16 11:29:33,099 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1019 transitions. Word has length 99 [2022-11-16 11:29:33,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:33,100 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 1019 transitions. [2022-11-16 11:29:33,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:33,100 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1019 transitions. [2022-11-16 11:29:33,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:29:33,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:33,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:33,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-16 11:29:33,101 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:29:33,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:33,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1243357058, now seen corresponding path program 1 times [2022-11-16 11:29:33,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:33,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708886553] [2022-11-16 11:29:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:33,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:33,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:33,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708886553] [2022-11-16 11:29:33,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708886553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:33,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:33,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:33,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286025934] [2022-11-16 11:29:33,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:33,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:29:33,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:33,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:29:33,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:29:33,843 INFO L87 Difference]: Start difference. First operand 791 states and 1019 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:41,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:41,386 INFO L93 Difference]: Finished difference Result 2952 states and 4069 transitions. [2022-11-16 11:29:41,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:29:41,386 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-11-16 11:29:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:41,388 INFO L225 Difference]: With dead ends: 2952 [2022-11-16 11:29:41,388 INFO L226 Difference]: Without dead ends: 2770 [2022-11-16 11:29:41,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:29:41,389 INFO L413 NwaCegarLoop]: 1543 mSDtfsCounter, 5023 mSDsluCounter, 10113 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5023 SdHoareTripleChecker+Valid, 11656 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:41,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5023 Valid, 11656 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:29:41,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2022-11-16 11:29:42,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 755. [2022-11-16 11:29:42,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 738 states have (on average 1.3130081300813008) internal successors, (969), 754 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:42,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 969 transitions. [2022-11-16 11:29:42,144 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 969 transitions. Word has length 99 [2022-11-16 11:29:42,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:42,145 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 969 transitions. [2022-11-16 11:29:42,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 969 transitions. [2022-11-16 11:29:42,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:29:42,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:42,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:42,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-16 11:29:42,147 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:29:42,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:42,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1918631710, now seen corresponding path program 1 times [2022-11-16 11:29:42,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:42,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351317647] [2022-11-16 11:29:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:42,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:42,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:42,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:42,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351317647] [2022-11-16 11:29:42,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351317647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:42,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:42,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:29:42,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609526193] [2022-11-16 11:29:42,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:42,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:29:42,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:42,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:29:42,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:29:42,831 INFO L87 Difference]: Start difference. First operand 755 states and 969 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:45,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:45,884 INFO L93 Difference]: Finished difference Result 1413 states and 1918 transitions. [2022-11-16 11:29:45,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:29:45,884 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-11-16 11:29:45,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:45,886 INFO L225 Difference]: With dead ends: 1413 [2022-11-16 11:29:45,886 INFO L226 Difference]: Without dead ends: 1105 [2022-11-16 11:29:45,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:29:45,887 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 3322 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3322 SdHoareTripleChecker+Valid, 4667 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:45,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3322 Valid, 4667 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:29:45,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2022-11-16 11:29:46,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 593. [2022-11-16 11:29:46,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 581 states have (on average 1.3166953528399312) internal successors, (765), 592 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:46,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 765 transitions. [2022-11-16 11:29:46,573 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 765 transitions. Word has length 99 [2022-11-16 11:29:46,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:46,573 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 765 transitions. [2022-11-16 11:29:46,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:46,574 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 765 transitions. [2022-11-16 11:29:46,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:29:46,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:46,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:46,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-16 11:29:46,575 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:29:46,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:46,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1407077202, now seen corresponding path program 1 times [2022-11-16 11:29:46,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:46,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418762659] [2022-11-16 11:29:46,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:46,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:47,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:47,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:47,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418762659] [2022-11-16 11:29:47,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418762659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:47,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:47,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:47,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388348356] [2022-11-16 11:29:47,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:47,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:29:47,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:47,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:29:47,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:29:47,253 INFO L87 Difference]: Start difference. First operand 593 states and 765 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:54,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:54,659 INFO L93 Difference]: Finished difference Result 2443 states and 3426 transitions. [2022-11-16 11:29:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:29:54,659 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-11-16 11:29:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:54,662 INFO L225 Difference]: With dead ends: 2443 [2022-11-16 11:29:54,662 INFO L226 Difference]: Without dead ends: 2290 [2022-11-16 11:29:54,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:29:54,663 INFO L413 NwaCegarLoop]: 1391 mSDtfsCounter, 3168 mSDsluCounter, 9196 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3168 SdHoareTripleChecker+Valid, 10587 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:54,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3168 Valid, 10587 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1636 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:29:54,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2022-11-16 11:29:55,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 586. [2022-11-16 11:29:55,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 574 states have (on average 1.3153310104529616) internal successors, (755), 585 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:55,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 755 transitions. [2022-11-16 11:29:55,392 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 755 transitions. Word has length 99 [2022-11-16 11:29:55,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:55,392 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 755 transitions. [2022-11-16 11:29:55,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:55,393 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 755 transitions. [2022-11-16 11:29:55,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:29:55,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:55,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:55,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-16 11:29:55,394 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:29:55,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:55,394 INFO L85 PathProgramCache]: Analyzing trace with hash 2018116842, now seen corresponding path program 1 times [2022-11-16 11:29:55,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:55,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339344167] [2022-11-16 11:29:55,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:55,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:56,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:56,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339344167] [2022-11-16 11:29:56,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339344167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:56,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:56,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:29:56,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850343314] [2022-11-16 11:29:56,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:56,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:29:56,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:56,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:29:56,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:29:56,478 INFO L87 Difference]: Start difference. First operand 586 states and 755 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:02,913 INFO L93 Difference]: Finished difference Result 1907 states and 2618 transitions. [2022-11-16 11:30:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 11:30:02,914 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-11-16 11:30:02,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:02,915 INFO L225 Difference]: With dead ends: 1907 [2022-11-16 11:30:02,915 INFO L226 Difference]: Without dead ends: 1724 [2022-11-16 11:30:02,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-11-16 11:30:02,916 INFO L413 NwaCegarLoop]: 1131 mSDtfsCounter, 3573 mSDsluCounter, 9664 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3573 SdHoareTripleChecker+Valid, 10795 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:02,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3573 Valid, 10795 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:30:02,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2022-11-16 11:30:03,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 568. [2022-11-16 11:30:03,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 556 states have (on average 1.3111510791366907) internal successors, (729), 567 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:03,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 729 transitions. [2022-11-16 11:30:03,678 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 729 transitions. Word has length 99 [2022-11-16 11:30:03,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:03,678 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 729 transitions. [2022-11-16 11:30:03,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:03,679 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 729 transitions. [2022-11-16 11:30:03,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:30:03,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:03,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:03,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-16 11:30:03,680 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:03,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:03,680 INFO L85 PathProgramCache]: Analyzing trace with hash 204495174, now seen corresponding path program 1 times [2022-11-16 11:30:03,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:03,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090352504] [2022-11-16 11:30:03,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:03,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:04,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:04,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:04,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090352504] [2022-11-16 11:30:04,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090352504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:04,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:04,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:30:04,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992402892] [2022-11-16 11:30:04,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:04,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:30:04,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:04,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:30:04,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:30:04,252 INFO L87 Difference]: Start difference. First operand 568 states and 729 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:07,071 INFO L93 Difference]: Finished difference Result 1012 states and 1343 transitions. [2022-11-16 11:30:07,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:30:07,071 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-11-16 11:30:07,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:07,072 INFO L225 Difference]: With dead ends: 1012 [2022-11-16 11:30:07,072 INFO L226 Difference]: Without dead ends: 862 [2022-11-16 11:30:07,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:07,073 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 2591 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:07,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2591 Valid, 2756 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:30:07,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2022-11-16 11:30:07,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 564. [2022-11-16 11:30:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 553 states have (on average 1.3092224231464737) internal successors, (724), 563 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 724 transitions. [2022-11-16 11:30:07,836 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 724 transitions. Word has length 99 [2022-11-16 11:30:07,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:07,836 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 724 transitions. [2022-11-16 11:30:07,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:07,837 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 724 transitions. [2022-11-16 11:30:07,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:30:07,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:07,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:07,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-16 11:30:07,839 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:07,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:07,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1576021974, now seen corresponding path program 1 times [2022-11-16 11:30:07,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:07,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745005891] [2022-11-16 11:30:07,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:07,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:08,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:08,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:08,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745005891] [2022-11-16 11:30:08,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745005891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:08,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:08,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:30:08,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651724673] [2022-11-16 11:30:08,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:08,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:30:08,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:08,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:30:08,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:30:08,656 INFO L87 Difference]: Start difference. First operand 564 states and 724 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:11,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:11,957 INFO L93 Difference]: Finished difference Result 1123 states and 1520 transitions. [2022-11-16 11:30:11,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:30:11,957 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-11-16 11:30:11,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:11,959 INFO L225 Difference]: With dead ends: 1123 [2022-11-16 11:30:11,959 INFO L226 Difference]: Without dead ends: 793 [2022-11-16 11:30:11,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:30:11,959 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 1919 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 4036 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:11,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 4036 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:30:11,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-11-16 11:30:12,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 470. [2022-11-16 11:30:12,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 460 states have (on average 1.3021739130434782) internal successors, (599), 469 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:12,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 599 transitions. [2022-11-16 11:30:12,620 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 599 transitions. Word has length 99 [2022-11-16 11:30:12,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:12,620 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 599 transitions. [2022-11-16 11:30:12,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:12,621 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 599 transitions. [2022-11-16 11:30:12,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 11:30:12,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:12,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:12,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-16 11:30:12,621 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:12,622 INFO L85 PathProgramCache]: Analyzing trace with hash 669683478, now seen corresponding path program 1 times [2022-11-16 11:30:12,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:12,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786823732] [2022-11-16 11:30:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:12,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:13,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:13,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786823732] [2022-11-16 11:30:13,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786823732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:13,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:13,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:30:13,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297738124] [2022-11-16 11:30:13,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:13,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:30:13,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:13,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:30:13,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:30:13,281 INFO L87 Difference]: Start difference. First operand 470 states and 599 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:15,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:15,610 INFO L93 Difference]: Finished difference Result 870 states and 1160 transitions. [2022-11-16 11:30:15,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:30:15,611 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-11-16 11:30:15,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:15,612 INFO L225 Difference]: With dead ends: 870 [2022-11-16 11:30:15,612 INFO L226 Difference]: Without dead ends: 718 [2022-11-16 11:30:15,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:15,613 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1885 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1885 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:15,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1885 Valid, 2129 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:30:15,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-11-16 11:30:16,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 458. [2022-11-16 11:30:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 449 states have (on average 1.2962138084632517) internal successors, (582), 457 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 582 transitions. [2022-11-16 11:30:16,294 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 582 transitions. Word has length 100 [2022-11-16 11:30:16,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:16,295 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 582 transitions. [2022-11-16 11:30:16,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 582 transitions. [2022-11-16 11:30:16,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 11:30:16,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:16,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:16,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-16 11:30:16,296 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:16,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:16,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1110833670, now seen corresponding path program 1 times [2022-11-16 11:30:16,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:16,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885481912] [2022-11-16 11:30:16,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:16,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:17,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:17,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:17,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885481912] [2022-11-16 11:30:17,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885481912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:17,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:17,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:30:17,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325341050] [2022-11-16 11:30:17,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:17,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:30:17,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:17,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:30:17,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:30:17,197 INFO L87 Difference]: Start difference. First operand 458 states and 582 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:22,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:22,087 INFO L93 Difference]: Finished difference Result 1357 states and 1834 transitions. [2022-11-16 11:30:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:30:22,088 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-11-16 11:30:22,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:22,089 INFO L225 Difference]: With dead ends: 1357 [2022-11-16 11:30:22,089 INFO L226 Difference]: Without dead ends: 1191 [2022-11-16 11:30:22,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2022-11-16 11:30:22,090 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 2616 mSDsluCounter, 8631 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 9496 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:22,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2616 Valid, 9496 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:30:22,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2022-11-16 11:30:22,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 428. [2022-11-16 11:30:22,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 420 states have (on average 1.2952380952380953) internal successors, (544), 427 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:22,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 544 transitions. [2022-11-16 11:30:22,764 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 544 transitions. Word has length 100 [2022-11-16 11:30:22,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:22,764 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 544 transitions. [2022-11-16 11:30:22,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:22,764 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 544 transitions. [2022-11-16 11:30:22,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 11:30:22,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:22,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:22,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-16 11:30:22,765 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:22,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:22,766 INFO L85 PathProgramCache]: Analyzing trace with hash 586480972, now seen corresponding path program 1 times [2022-11-16 11:30:22,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:22,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862576650] [2022-11-16 11:30:22,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:22,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:23,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:23,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:23,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862576650] [2022-11-16 11:30:23,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862576650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:23,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:23,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:30:23,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463819472] [2022-11-16 11:30:23,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:23,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:30:23,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:23,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:30:23,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:30:23,088 INFO L87 Difference]: Start difference. First operand 428 states and 544 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:25,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:25,355 INFO L93 Difference]: Finished difference Result 671 states and 871 transitions. [2022-11-16 11:30:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:30:25,355 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-11-16 11:30:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:25,356 INFO L225 Difference]: With dead ends: 671 [2022-11-16 11:30:25,356 INFO L226 Difference]: Without dead ends: 664 [2022-11-16 11:30:25,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:30:25,357 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 1738 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:25,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 1302 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:30:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-11-16 11:30:25,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 428. [2022-11-16 11:30:25,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 420 states have (on average 1.292857142857143) internal successors, (543), 427 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 543 transitions. [2022-11-16 11:30:25,960 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 543 transitions. Word has length 100 [2022-11-16 11:30:25,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:25,961 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 543 transitions. [2022-11-16 11:30:25,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 543 transitions. [2022-11-16 11:30:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 11:30:25,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:25,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:25,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-16 11:30:25,962 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:25,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:25,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2008689100, now seen corresponding path program 1 times [2022-11-16 11:30:25,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:25,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594389716] [2022-11-16 11:30:25,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:25,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:26,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:26,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594389716] [2022-11-16 11:30:26,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594389716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:26,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:26,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:30:26,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555684400] [2022-11-16 11:30:26,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:26,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:30:26,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:26,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:30:26,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:30:26,380 INFO L87 Difference]: Start difference. First operand 428 states and 543 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:34,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:34,440 INFO L93 Difference]: Finished difference Result 2047 states and 2908 transitions. [2022-11-16 11:30:34,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:30:34,441 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-11-16 11:30:34,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:34,442 INFO L225 Difference]: With dead ends: 2047 [2022-11-16 11:30:34,443 INFO L226 Difference]: Without dead ends: 1871 [2022-11-16 11:30:34,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:30:34,443 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 3591 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3591 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:34,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3591 Valid, 2570 Invalid, 2117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:30:34,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2022-11-16 11:30:35,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 436. [2022-11-16 11:30:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 428 states have (on average 1.2873831775700935) internal successors, (551), 435 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:35,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 551 transitions. [2022-11-16 11:30:35,137 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 551 transitions. Word has length 100 [2022-11-16 11:30:35,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:35,138 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 551 transitions. [2022-11-16 11:30:35,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 551 transitions. [2022-11-16 11:30:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 11:30:35,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:35,138 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:35,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-16 11:30:35,139 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:35,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:35,139 INFO L85 PathProgramCache]: Analyzing trace with hash -728571105, now seen corresponding path program 1 times [2022-11-16 11:30:35,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:35,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508823961] [2022-11-16 11:30:35,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:35,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:35,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:35,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508823961] [2022-11-16 11:30:35,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508823961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:35,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:35,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:35,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710467667] [2022-11-16 11:30:35,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:35,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:30:35,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:35,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:30:35,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:30:35,721 INFO L87 Difference]: Start difference. First operand 436 states and 551 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:39,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:39,320 INFO L93 Difference]: Finished difference Result 1220 states and 1660 transitions. [2022-11-16 11:30:39,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:30:39,321 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-11-16 11:30:39,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:39,322 INFO L225 Difference]: With dead ends: 1220 [2022-11-16 11:30:39,322 INFO L226 Difference]: Without dead ends: 1063 [2022-11-16 11:30:39,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:30:39,323 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 2318 mSDsluCounter, 3278 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:39,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 3701 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:30:39,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-11-16 11:30:40,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 425. [2022-11-16 11:30:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 418 states have (on average 1.284688995215311) internal successors, (537), 424 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 537 transitions. [2022-11-16 11:30:40,015 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 537 transitions. Word has length 100 [2022-11-16 11:30:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:40,015 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 537 transitions. [2022-11-16 11:30:40,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 537 transitions. [2022-11-16 11:30:40,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 11:30:40,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:40,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:40,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-11-16 11:30:40,016 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:40,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:40,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1176267042, now seen corresponding path program 1 times [2022-11-16 11:30:40,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:40,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691286516] [2022-11-16 11:30:40,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:40,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:40,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:40,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691286516] [2022-11-16 11:30:40,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691286516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:40,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:40,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:40,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55786139] [2022-11-16 11:30:40,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:40,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:30:40,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:40,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:30:40,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:30:40,541 INFO L87 Difference]: Start difference. First operand 425 states and 537 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:43,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:43,884 INFO L93 Difference]: Finished difference Result 1247 states and 1694 transitions. [2022-11-16 11:30:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:30:43,884 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-11-16 11:30:43,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:43,885 INFO L225 Difference]: With dead ends: 1247 [2022-11-16 11:30:43,885 INFO L226 Difference]: Without dead ends: 1077 [2022-11-16 11:30:43,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:30:43,886 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 1948 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1948 SdHoareTripleChecker+Valid, 3699 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:43,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1948 Valid, 3699 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:30:43,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-11-16 11:30:44,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 401. [2022-11-16 11:30:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 395 states have (on average 1.281012658227848) internal successors, (506), 400 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 506 transitions. [2022-11-16 11:30:44,520 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 506 transitions. Word has length 100 [2022-11-16 11:30:44,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:44,521 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 506 transitions. [2022-11-16 11:30:44,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 506 transitions. [2022-11-16 11:30:44,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-16 11:30:44,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:44,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:44,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-16 11:30:44,522 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:44,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash 862448, now seen corresponding path program 1 times [2022-11-16 11:30:44,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:44,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179318639] [2022-11-16 11:30:44,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:44,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:44,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:44,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179318639] [2022-11-16 11:30:44,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179318639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:44,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:44,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:30:44,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021714909] [2022-11-16 11:30:44,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:44,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:30:44,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:44,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:30:44,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:30:44,833 INFO L87 Difference]: Start difference. First operand 401 states and 506 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:46,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:46,922 INFO L93 Difference]: Finished difference Result 631 states and 818 transitions. [2022-11-16 11:30:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:30:46,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 [2022-11-16 11:30:46,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:46,923 INFO L225 Difference]: With dead ends: 631 [2022-11-16 11:30:46,923 INFO L226 Difference]: Without dead ends: 624 [2022-11-16 11:30:46,923 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 [2022-11-16 11:30:46,924 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 1357 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:46,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 910 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:30:46,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-11-16 11:30:47,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 401. [2022-11-16 11:30:47,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 395 states have (on average 1.2784810126582278) internal successors, (505), 400 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 505 transitions. [2022-11-16 11:30:47,608 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 505 transitions. Word has length 101 [2022-11-16 11:30:47,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:47,608 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 505 transitions. [2022-11-16 11:30:47,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:47,608 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 505 transitions. [2022-11-16 11:30:47,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-16 11:30:47,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:47,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:47,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-16 11:30:47,609 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:47,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:47,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1982954255, now seen corresponding path program 1 times [2022-11-16 11:30:47,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:47,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316330913] [2022-11-16 11:30:47,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:47,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:47,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:47,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:47,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316330913] [2022-11-16 11:30:47,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316330913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:47,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:47,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:30:47,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87949562] [2022-11-16 11:30:47,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:47,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:30:47,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:47,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:30:47,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:30:47,801 INFO L87 Difference]: Start difference. First operand 401 states and 505 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:51,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:51,264 INFO L93 Difference]: Finished difference Result 1091 states and 1507 transitions. [2022-11-16 11:30:51,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:30:51,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 [2022-11-16 11:30:51,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:51,266 INFO L225 Difference]: With dead ends: 1091 [2022-11-16 11:30:51,266 INFO L226 Difference]: Without dead ends: 915 [2022-11-16 11:30:51,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:30:51,266 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 1668 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:51,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 1288 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:30:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-11-16 11:30:51,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 393. [2022-11-16 11:30:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 387 states have (on average 1.2790697674418605) internal successors, (495), 392 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:51,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 495 transitions. [2022-11-16 11:30:51,936 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 495 transitions. Word has length 101 [2022-11-16 11:30:51,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:51,936 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 495 transitions. [2022-11-16 11:30:51,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:51,936 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 495 transitions. [2022-11-16 11:30:51,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-16 11:30:51,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:51,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:51,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-11-16 11:30:51,937 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:51,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:51,938 INFO L85 PathProgramCache]: Analyzing trace with hash 87593739, now seen corresponding path program 1 times [2022-11-16 11:30:51,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:51,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562501742] [2022-11-16 11:30:51,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:51,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:52,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:52,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:52,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562501742] [2022-11-16 11:30:52,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562501742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:52,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:52,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:30:52,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010092551] [2022-11-16 11:30:52,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:52,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:30:52,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:52,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:30:52,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:30:52,637 INFO L87 Difference]: Start difference. First operand 393 states and 495 transitions. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:55,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:55,195 INFO L93 Difference]: Finished difference Result 815 states and 1084 transitions. [2022-11-16 11:30:55,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:30:55,196 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 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 [2022-11-16 11:30:55,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:55,197 INFO L225 Difference]: With dead ends: 815 [2022-11-16 11:30:55,197 INFO L226 Difference]: Without dead ends: 646 [2022-11-16 11:30:55,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:30:55,197 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 931 mSDsluCounter, 3785 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 4267 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:55,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 4267 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:30:55,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2022-11-16 11:30:55,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 370. [2022-11-16 11:30:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 365 states have (on average 1.2821917808219179) internal successors, (468), 369 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:55,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 468 transitions. [2022-11-16 11:30:55,840 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 468 transitions. Word has length 101 [2022-11-16 11:30:55,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:55,840 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 468 transitions. [2022-11-16 11:30:55,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:55,841 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 468 transitions. [2022-11-16 11:30:55,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-16 11:30:55,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:55,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:55,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-11-16 11:30:55,842 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:30:55,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:55,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1033899177, now seen corresponding path program 1 times [2022-11-16 11:30:55,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:55,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092222161] [2022-11-16 11:30:55,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:55,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:56,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:56,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:56,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092222161] [2022-11-16 11:30:56,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092222161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:56,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:56,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:30:56,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928296457] [2022-11-16 11:30:56,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:56,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:30:56,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:56,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:30:56,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:30:56,371 INFO L87 Difference]: Start difference. First operand 370 states and 468 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:00,765 INFO L93 Difference]: Finished difference Result 954 states and 1302 transitions. [2022-11-16 11:31:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:31:00,765 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 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 [2022-11-16 11:31:00,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:00,766 INFO L225 Difference]: With dead ends: 954 [2022-11-16 11:31:00,767 INFO L226 Difference]: Without dead ends: 947 [2022-11-16 11:31:00,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:31:00,767 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 2296 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:00,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 1470 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:31:00,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-11-16 11:31:01,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 374. [2022-11-16 11:31:01,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 369 states have (on average 1.2791327913279134) internal successors, (472), 373 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:01,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 472 transitions. [2022-11-16 11:31:01,393 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 472 transitions. Word has length 101 [2022-11-16 11:31:01,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:01,393 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 472 transitions. [2022-11-16 11:31:01,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:01,394 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 472 transitions. [2022-11-16 11:31:01,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-16 11:31:01,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:01,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:01,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-16 11:31:01,395 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:31:01,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash 259521936, now seen corresponding path program 1 times [2022-11-16 11:31:01,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:01,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315065186] [2022-11-16 11:31:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:01,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:01,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:01,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315065186] [2022-11-16 11:31:01,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315065186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:01,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:01,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:31:01,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945731145] [2022-11-16 11:31:01,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:01,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:31:01,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:01,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:31:01,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:31:01,930 INFO L87 Difference]: Start difference. First operand 374 states and 472 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:05,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:05,232 INFO L93 Difference]: Finished difference Result 890 states and 1216 transitions. [2022-11-16 11:31:05,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:31:05,232 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 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 [2022-11-16 11:31:05,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:05,233 INFO L225 Difference]: With dead ends: 890 [2022-11-16 11:31:05,233 INFO L226 Difference]: Without dead ends: 884 [2022-11-16 11:31:05,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:05,234 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1507 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:05,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 2830 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:31:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-11-16 11:31:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 368. [2022-11-16 11:31:05,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 364 states have (on average 1.2774725274725274) internal successors, (465), 367 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 465 transitions. [2022-11-16 11:31:05,961 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 465 transitions. Word has length 102 [2022-11-16 11:31:05,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:05,961 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 465 transitions. [2022-11-16 11:31:05,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 465 transitions. [2022-11-16 11:31:05,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-16 11:31:05,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:05,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:05,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-16 11:31:05,963 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:31:05,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:05,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1911406244, now seen corresponding path program 1 times [2022-11-16 11:31:05,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:05,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940644554] [2022-11-16 11:31:05,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:05,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:08,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:08,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:08,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940644554] [2022-11-16 11:31:08,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940644554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:08,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:08,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-11-16 11:31:08,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649715798] [2022-11-16 11:31:08,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:08,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-16 11:31:08,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:08,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-16 11:31:08,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=949, Unknown=0, NotChecked=0, Total=1056 [2022-11-16 11:31:08,447 INFO L87 Difference]: Start difference. First operand 368 states and 465 transitions. Second operand has 33 states, 33 states have (on average 3.090909090909091) internal successors, (102), 33 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:16,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:16,511 INFO L93 Difference]: Finished difference Result 669 states and 852 transitions. [2022-11-16 11:31:16,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-16 11:31:16,511 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.090909090909091) internal successors, (102), 33 states have internal predecessors, (102), 0 states have call successors, (0), 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 [2022-11-16 11:31:16,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:16,512 INFO L225 Difference]: With dead ends: 669 [2022-11-16 11:31:16,512 INFO L226 Difference]: Without dead ends: 661 [2022-11-16 11:31:16,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=593, Invalid=3189, Unknown=0, NotChecked=0, Total=3782 [2022-11-16 11:31:16,513 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1418 mSDsluCounter, 6633 mSDsCounter, 0 mSdLazyCounter, 3589 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 7058 SdHoareTripleChecker+Invalid, 3619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:16,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 7058 Invalid, 3619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3589 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-16 11:31:16,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-11-16 11:31:17,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 387. [2022-11-16 11:31:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 383 states have (on average 1.2741514360313315) internal successors, (488), 386 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) [2022-11-16 11:31:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 488 transitions. [2022-11-16 11:31:17,290 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 488 transitions. Word has length 102 [2022-11-16 11:31:17,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:17,290 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 488 transitions. [2022-11-16 11:31:17,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.090909090909091) internal successors, (102), 33 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:17,291 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 488 transitions. [2022-11-16 11:31:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-16 11:31:17,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:17,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:17,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-16 11:31:17,292 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:31:17,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:17,292 INFO L85 PathProgramCache]: Analyzing trace with hash -53909249, now seen corresponding path program 1 times [2022-11-16 11:31:17,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:17,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838434025] [2022-11-16 11:31:17,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:17,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:17,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:17,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:17,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838434025] [2022-11-16 11:31:17,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838434025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:17,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:17,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:31:17,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227589956] [2022-11-16 11:31:17,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:17,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:31:17,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:17,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:31:17,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:31:17,518 INFO L87 Difference]: Start difference. First operand 387 states and 488 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:19,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:19,821 INFO L93 Difference]: Finished difference Result 594 states and 772 transitions. [2022-11-16 11:31:19,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:31:19,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 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 [2022-11-16 11:31:19,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:19,822 INFO L225 Difference]: With dead ends: 594 [2022-11-16 11:31:19,822 INFO L226 Difference]: Without dead ends: 587 [2022-11-16 11:31:19,823 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 [2022-11-16 11:31:19,823 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 1268 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:19,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1268 Valid, 1058 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:31:19,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-11-16 11:31:20,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 383. [2022-11-16 11:31:20,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 379 states have (on average 1.274406332453826) internal successors, (483), 382 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:20,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 483 transitions. [2022-11-16 11:31:20,596 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 483 transitions. Word has length 102 [2022-11-16 11:31:20,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:20,597 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 483 transitions. [2022-11-16 11:31:20,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:20,597 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 483 transitions. [2022-11-16 11:31:20,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 11:31:20,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:20,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:20,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-11-16 11:31:20,599 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:31:20,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:20,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2050084704, now seen corresponding path program 1 times [2022-11-16 11:31:20,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:20,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265062214] [2022-11-16 11:31:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:20,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:21,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:21,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265062214] [2022-11-16 11:31:21,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265062214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:21,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:21,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:31:21,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46883171] [2022-11-16 11:31:21,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:21,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:31:21,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:21,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:31:21,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:31:21,192 INFO L87 Difference]: Start difference. First operand 383 states and 483 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:24,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:24,759 INFO L93 Difference]: Finished difference Result 1009 states and 1363 transitions. [2022-11-16 11:31:24,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:31:24,759 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 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 [2022-11-16 11:31:24,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:24,761 INFO L225 Difference]: With dead ends: 1009 [2022-11-16 11:31:24,761 INFO L226 Difference]: Without dead ends: 985 [2022-11-16 11:31:24,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:24,761 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 1419 mSDsluCounter, 3138 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:24,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 3805 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:31:24,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2022-11-16 11:31:25,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 359. [2022-11-16 11:31:25,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 356 states have (on average 1.2808988764044944) internal successors, (456), 358 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 456 transitions. [2022-11-16 11:31:25,523 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 456 transitions. Word has length 103 [2022-11-16 11:31:25,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:25,523 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 456 transitions. [2022-11-16 11:31:25,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:25,524 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 456 transitions. [2022-11-16 11:31:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 11:31:25,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:25,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:25,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-16 11:31:25,524 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:31:25,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:25,525 INFO L85 PathProgramCache]: Analyzing trace with hash -744380730, now seen corresponding path program 1 times [2022-11-16 11:31:25,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:25,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220220206] [2022-11-16 11:31:25,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:25,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:26,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:26,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:26,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220220206] [2022-11-16 11:31:26,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220220206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:26,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:26,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:26,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134555677] [2022-11-16 11:31:26,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:26,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:31:26,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:26,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:31:26,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:31:26,203 INFO L87 Difference]: Start difference. First operand 359 states and 456 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:31,445 INFO L93 Difference]: Finished difference Result 1227 states and 1711 transitions. [2022-11-16 11:31:31,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:31:31,445 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 0 states have call successors, (0), 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 [2022-11-16 11:31:31,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:31,447 INFO L225 Difference]: With dead ends: 1227 [2022-11-16 11:31:31,447 INFO L226 Difference]: Without dead ends: 1212 [2022-11-16 11:31:31,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:31:31,448 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 1414 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 3916 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:31,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 3916 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:31:31,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-11-16 11:31:32,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 328. [2022-11-16 11:31:32,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 326 states have (on average 1.2852760736196318) internal successors, (419), 327 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 419 transitions. [2022-11-16 11:31:32,087 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 419 transitions. Word has length 103 [2022-11-16 11:31:32,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:32,087 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 419 transitions. [2022-11-16 11:31:32,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,088 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 419 transitions. [2022-11-16 11:31:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 11:31:32,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:32,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:32,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-16 11:31:32,088 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:31:32,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:32,089 INFO L85 PathProgramCache]: Analyzing trace with hash -23569721, now seen corresponding path program 1 times [2022-11-16 11:31:32,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:32,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64718718] [2022-11-16 11:31:32,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:32,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:32,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:32,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64718718] [2022-11-16 11:31:32,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64718718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:32,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:32,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:31:32,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859389596] [2022-11-16 11:31:32,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:32,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:31:32,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:32,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:31:32,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:31:32,486 INFO L87 Difference]: Start difference. First operand 328 states and 419 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:35,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:35,582 INFO L93 Difference]: Finished difference Result 780 states and 1093 transitions. [2022-11-16 11:31:35,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:31:35,582 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 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 [2022-11-16 11:31:35,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:35,583 INFO L225 Difference]: With dead ends: 780 [2022-11-16 11:31:35,583 INFO L226 Difference]: Without dead ends: 744 [2022-11-16 11:31:35,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:31:35,584 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 1730 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:35,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 1301 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:31:35,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-11-16 11:31:36,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 292. [2022-11-16 11:31:36,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 1.302405498281787) internal successors, (379), 291 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:36,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 379 transitions. [2022-11-16 11:31:36,219 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 379 transitions. Word has length 103 [2022-11-16 11:31:36,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:36,220 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 379 transitions. [2022-11-16 11:31:36,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:36,220 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 379 transitions. [2022-11-16 11:31:36,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-16 11:31:36,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:36,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:36,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-11-16 11:31:36,221 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:31:36,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:36,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1124148050, now seen corresponding path program 1 times [2022-11-16 11:31:36,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:36,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199570163] [2022-11-16 11:31:36,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:36,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:36,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:36,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199570163] [2022-11-16 11:31:36,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199570163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:36,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:36,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:31:36,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419467658] [2022-11-16 11:31:36,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:36,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:31:36,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:36,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:31:36,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:31:36,391 INFO L87 Difference]: Start difference. First operand 292 states and 379 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:43,923 INFO L93 Difference]: Finished difference Result 2044 states and 3019 transitions. [2022-11-16 11:31:43,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:31:43,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-11-16 11:31:43,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:43,926 INFO L225 Difference]: With dead ends: 2044 [2022-11-16 11:31:43,927 INFO L226 Difference]: Without dead ends: 1898 [2022-11-16 11:31:43,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:31:43,927 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 2064 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:43,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2064 Valid, 2721 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:31:43,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2022-11-16 11:31:45,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 436. [2022-11-16 11:31:45,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 1.3655172413793104) internal successors, (594), 435 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:45,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 594 transitions. [2022-11-16 11:31:45,256 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 594 transitions. Word has length 133 [2022-11-16 11:31:45,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:45,257 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 594 transitions. [2022-11-16 11:31:45,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:45,257 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 594 transitions. [2022-11-16 11:31:45,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-16 11:31:45,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:45,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:45,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-11-16 11:31:45,258 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:31:45,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:45,258 INFO L85 PathProgramCache]: Analyzing trace with hash -423567003, now seen corresponding path program 1 times [2022-11-16 11:31:45,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:45,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789390905] [2022-11-16 11:31:45,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:45,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:45,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:45,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:45,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789390905] [2022-11-16 11:31:45,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789390905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:45,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:45,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:31:45,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021396082] [2022-11-16 11:31:45,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:45,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:31:45,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:45,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:31:45,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:31:45,409 INFO L87 Difference]: Start difference. First operand 436 states and 594 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:53,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:53,386 INFO L93 Difference]: Finished difference Result 2322 states and 3420 transitions. [2022-11-16 11:31:53,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:31:53,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2022-11-16 11:31:53,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:53,388 INFO L225 Difference]: With dead ends: 2322 [2022-11-16 11:31:53,388 INFO L226 Difference]: Without dead ends: 2032 [2022-11-16 11:31:53,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:31:53,389 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1713 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:53,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 1540 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:31:53,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2022-11-16 11:31:55,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 724. [2022-11-16 11:31:55,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 723 states have (on average 1.4190871369294606) internal successors, (1026), 723 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:55,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1026 transitions. [2022-11-16 11:31:55,933 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1026 transitions. Word has length 135 [2022-11-16 11:31:55,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:55,933 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 1026 transitions. [2022-11-16 11:31:55,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:55,933 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1026 transitions. [2022-11-16 11:31:55,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-16 11:31:55,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:55,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:55,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-11-16 11:31:55,934 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:31:55,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:55,935 INFO L85 PathProgramCache]: Analyzing trace with hash 110372779, now seen corresponding path program 1 times [2022-11-16 11:31:55,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:55,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850907039] [2022-11-16 11:31:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:55,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:56,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:56,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:56,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850907039] [2022-11-16 11:31:56,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850907039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:56,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:56,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:31:56,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339987358] [2022-11-16 11:31:56,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:56,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:31:56,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:56,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:31:56,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:31:56,079 INFO L87 Difference]: Start difference. First operand 724 states and 1026 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:05,586 INFO L93 Difference]: Finished difference Result 2610 states and 3852 transitions. [2022-11-16 11:32:05,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:32:05,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2022-11-16 11:32:05,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:05,589 INFO L225 Difference]: With dead ends: 2610 [2022-11-16 11:32:05,589 INFO L226 Difference]: Without dead ends: 2320 [2022-11-16 11:32:05,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:32:05,590 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1835 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:05,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 1385 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:32:05,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2022-11-16 11:32:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 1156. [2022-11-16 11:32:10,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.4484848484848485) internal successors, (1673), 1155 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:10,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1673 transitions. [2022-11-16 11:32:10,153 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1673 transitions. Word has length 135 [2022-11-16 11:32:10,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:10,153 INFO L495 AbstractCegarLoop]: Abstraction has 1156 states and 1673 transitions. [2022-11-16 11:32:10,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:10,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1673 transitions. [2022-11-16 11:32:10,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-16 11:32:10,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:10,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:10,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-11-16 11:32:10,154 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:32:10,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:10,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1835758900, now seen corresponding path program 1 times [2022-11-16 11:32:10,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:10,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038788126] [2022-11-16 11:32:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:10,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:10,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:10,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038788126] [2022-11-16 11:32:10,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038788126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:10,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:10,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:32:10,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153866015] [2022-11-16 11:32:10,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:10,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:32:10,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:10,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:32:10,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:10,227 INFO L87 Difference]: Start difference. First operand 1156 states and 1673 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:14,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:14,633 INFO L93 Difference]: Finished difference Result 2168 states and 3188 transitions. [2022-11-16 11:32:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:32:14,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2022-11-16 11:32:14,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:14,635 INFO L225 Difference]: With dead ends: 2168 [2022-11-16 11:32:14,635 INFO L226 Difference]: Without dead ends: 1158 [2022-11-16 11:32:14,637 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 [2022-11-16 11:32:14,637 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 88 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:14,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 375 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:32:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-11-16 11:32:19,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1156. [2022-11-16 11:32:19,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.4415584415584415) internal successors, (1665), 1155 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1665 transitions. [2022-11-16 11:32:19,243 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1665 transitions. Word has length 135 [2022-11-16 11:32:19,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:19,243 INFO L495 AbstractCegarLoop]: Abstraction has 1156 states and 1665 transitions. [2022-11-16 11:32:19,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:19,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1665 transitions. [2022-11-16 11:32:19,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-16 11:32:19,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:19,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:19,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-11-16 11:32:19,245 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:32:19,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:19,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1096018579, now seen corresponding path program 1 times [2022-11-16 11:32:19,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:19,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648901013] [2022-11-16 11:32:19,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:19,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:19,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:19,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:19,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648901013] [2022-11-16 11:32:19,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648901013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:19,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:19,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:32:19,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792948682] [2022-11-16 11:32:19,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:19,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:32:19,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:19,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:32:19,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:19,310 INFO L87 Difference]: Start difference. First operand 1156 states and 1665 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:27,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:27,819 INFO L93 Difference]: Finished difference Result 3086 states and 4527 transitions. [2022-11-16 11:32:27,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:32:27,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2022-11-16 11:32:27,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:27,822 INFO L225 Difference]: With dead ends: 3086 [2022-11-16 11:32:27,822 INFO L226 Difference]: Without dead ends: 2076 [2022-11-16 11:32:27,823 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 [2022-11-16 11:32:27,823 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 135 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:27,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 364 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:32:27,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2022-11-16 11:32:35,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 2060. [2022-11-16 11:32:35,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 2059 states have (on average 1.4424477901894124) internal successors, (2970), 2059 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:35,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2970 transitions. [2022-11-16 11:32:35,769 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2970 transitions. Word has length 135 [2022-11-16 11:32:35,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:35,770 INFO L495 AbstractCegarLoop]: Abstraction has 2060 states and 2970 transitions. [2022-11-16 11:32:35,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:35,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2970 transitions. [2022-11-16 11:32:35,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-16 11:32:35,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:35,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:35,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-11-16 11:32:35,771 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:32:35,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:35,772 INFO L85 PathProgramCache]: Analyzing trace with hash 188573565, now seen corresponding path program 1 times [2022-11-16 11:32:35,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:35,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800682786] [2022-11-16 11:32:35,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:35,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:35,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:35,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800682786] [2022-11-16 11:32:35,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800682786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:35,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:35,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:32:35,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042005559] [2022-11-16 11:32:35,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:35,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:32:35,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:35,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:32:35,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:32:35,959 INFO L87 Difference]: Start difference. First operand 2060 states and 2970 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:55,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:55,426 INFO L93 Difference]: Finished difference Result 5350 states and 7813 transitions. [2022-11-16 11:32:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:32:55,426 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2022-11-16 11:32:55,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:55,433 INFO L225 Difference]: With dead ends: 5350 [2022-11-16 11:32:55,433 INFO L226 Difference]: Without dead ends: 4802 [2022-11-16 11:32:55,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:32:55,436 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1711 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:55,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 1546 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:32:55,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4802 states. [2022-11-16 11:33:05,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4802 to 2606. [2022-11-16 11:33:05,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 2605 states have (on average 1.4479846449136275) internal successors, (3772), 2605 states have internal predecessors, (3772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:05,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 3772 transitions. [2022-11-16 11:33:05,499 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 3772 transitions. Word has length 135 [2022-11-16 11:33:05,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:05,499 INFO L495 AbstractCegarLoop]: Abstraction has 2606 states and 3772 transitions. [2022-11-16 11:33:05,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:05,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 3772 transitions. [2022-11-16 11:33:05,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-16 11:33:05,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:05,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:05,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-11-16 11:33:05,501 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:33:05,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:05,501 INFO L85 PathProgramCache]: Analyzing trace with hash -930846025, now seen corresponding path program 1 times [2022-11-16 11:33:05,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:05,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753816847] [2022-11-16 11:33:05,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:05,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:05,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:05,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753816847] [2022-11-16 11:33:05,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753816847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:05,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:05,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:33:05,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353272171] [2022-11-16 11:33:05,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:05,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:33:05,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:05,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:33:05,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:33:05,638 INFO L87 Difference]: Start difference. First operand 2606 states and 3772 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:27,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:27,550 INFO L93 Difference]: Finished difference Result 5896 states and 8615 transitions. [2022-11-16 11:33:27,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:33:27,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2022-11-16 11:33:27,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:27,555 INFO L225 Difference]: With dead ends: 5896 [2022-11-16 11:33:27,555 INFO L226 Difference]: Without dead ends: 5348 [2022-11-16 11:33:27,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:33:27,557 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1538 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:27,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 1629 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:33:27,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5348 states. [2022-11-16 11:33:39,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5348 to 3152. [2022-11-16 11:33:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3152 states, 3151 states have (on average 1.4516026658203744) internal successors, (4574), 3151 states have internal predecessors, (4574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:39,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3152 states to 3152 states and 4574 transitions. [2022-11-16 11:33:39,939 INFO L78 Accepts]: Start accepts. Automaton has 3152 states and 4574 transitions. Word has length 135 [2022-11-16 11:33:39,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:39,939 INFO L495 AbstractCegarLoop]: Abstraction has 3152 states and 4574 transitions. [2022-11-16 11:33:39,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3152 states and 4574 transitions. [2022-11-16 11:33:39,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-16 11:33:39,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:39,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:39,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-11-16 11:33:39,941 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:33:39,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:39,942 INFO L85 PathProgramCache]: Analyzing trace with hash -798272143, now seen corresponding path program 1 times [2022-11-16 11:33:39,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:39,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226577473] [2022-11-16 11:33:39,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:39,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:40,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:40,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226577473] [2022-11-16 11:33:40,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226577473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:40,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:40,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:33:40,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931486856] [2022-11-16 11:33:40,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:40,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:33:40,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:40,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:33:40,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:33:40,168 INFO L87 Difference]: Start difference. First operand 3152 states and 4574 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:02,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:02,890 INFO L93 Difference]: Finished difference Result 6442 states and 9417 transitions. [2022-11-16 11:34:02,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:34:02,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2022-11-16 11:34:02,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:02,897 INFO L225 Difference]: With dead ends: 6442 [2022-11-16 11:34:02,897 INFO L226 Difference]: Without dead ends: 5894 [2022-11-16 11:34:02,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:34:02,898 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1541 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:02,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 1758 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:34:02,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2022-11-16 11:34:16,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 3698. [2022-11-16 11:34:16,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3697 states have (on average 1.4541520151474168) internal successors, (5376), 3697 states have internal predecessors, (5376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 5376 transitions. [2022-11-16 11:34:16,805 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 5376 transitions. Word has length 135 [2022-11-16 11:34:16,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:16,806 INFO L495 AbstractCegarLoop]: Abstraction has 3698 states and 5376 transitions. [2022-11-16 11:34:16,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:16,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 5376 transitions. [2022-11-16 11:34:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-16 11:34:16,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:16,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:16,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-11-16 11:34:16,807 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:34:16,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:16,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1014783631, now seen corresponding path program 1 times [2022-11-16 11:34:16,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:16,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645258654] [2022-11-16 11:34:16,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:16,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:16,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:16,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645258654] [2022-11-16 11:34:16,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645258654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:16,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:16,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:34:16,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278363759] [2022-11-16 11:34:16,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:16,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:34:16,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:16,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:34:16,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:34:16,896 INFO L87 Difference]: Start difference. First operand 3698 states and 5376 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:44,282 INFO L93 Difference]: Finished difference Result 10594 states and 15446 transitions. [2022-11-16 11:34:44,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:34:44,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-11-16 11:34:44,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:44,290 INFO L225 Difference]: With dead ends: 10594 [2022-11-16 11:34:44,290 INFO L226 Difference]: Without dead ends: 7042 [2022-11-16 11:34:44,292 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 [2022-11-16 11:34:44,293 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 107 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 485 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 [2022-11-16 11:34:44,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 485 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:34:44,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7042 states. [2022-11-16 11:35:10,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7042 to 6832. [2022-11-16 11:35:10,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6832 states, 6831 states have (on average 1.451617625530669) internal successors, (9916), 6831 states have internal predecessors, (9916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:10,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 9916 transitions. [2022-11-16 11:35:10,707 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 9916 transitions. Word has length 136 [2022-11-16 11:35:10,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:10,707 INFO L495 AbstractCegarLoop]: Abstraction has 6832 states and 9916 transitions. [2022-11-16 11:35:10,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:10,707 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 9916 transitions. [2022-11-16 11:35:10,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-16 11:35:10,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:10,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:10,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-11-16 11:35:10,709 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:35:10,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:10,709 INFO L85 PathProgramCache]: Analyzing trace with hash 577373062, now seen corresponding path program 1 times [2022-11-16 11:35:10,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:10,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523320330] [2022-11-16 11:35:10,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:10,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:10,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:10,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:10,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523320330] [2022-11-16 11:35:10,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523320330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:10,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:10,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:35:10,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023627854] [2022-11-16 11:35:10,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:10,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:35:10,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:10,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:35:10,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:35:10,810 INFO L87 Difference]: Start difference. First operand 6832 states and 9916 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:15,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:15,371 INFO L93 Difference]: Finished difference Result 19788 states and 28702 transitions. [2022-11-16 11:36:15,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:36:15,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2022-11-16 11:36:15,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:15,386 INFO L225 Difference]: With dead ends: 19788 [2022-11-16 11:36:15,386 INFO L226 Difference]: Without dead ends: 13102 [2022-11-16 11:36:15,391 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 [2022-11-16 11:36:15,391 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 100 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 485 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 [2022-11-16 11:36:15,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 485 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:36:15,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13102 states. [2022-11-16 11:37:13,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13102 to 12684. [2022-11-16 11:37:13,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12684 states, 12683 states have (on average 1.444453205077663) internal successors, (18320), 12683 states have internal predecessors, (18320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12684 states to 12684 states and 18320 transitions. [2022-11-16 11:37:13,259 INFO L78 Accepts]: Start accepts. Automaton has 12684 states and 18320 transitions. Word has length 137 [2022-11-16 11:37:13,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:13,259 INFO L495 AbstractCegarLoop]: Abstraction has 12684 states and 18320 transitions. [2022-11-16 11:37:13,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:13,259 INFO L276 IsEmpty]: Start isEmpty. Operand 12684 states and 18320 transitions. [2022-11-16 11:37:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-16 11:37:13,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:13,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:13,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-11-16 11:37:13,261 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-11-16 11:37:13,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1400739354, now seen corresponding path program 1 times [2022-11-16 11:37:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:13,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49196723] [2022-11-16 11:37:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:13,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:13,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:13,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:13,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49196723] [2022-11-16 11:37:13,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49196723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:13,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:13,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:37:13,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748962437] [2022-11-16 11:37:13,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:13,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:37:13,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:13,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:37:13,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:37:13,391 INFO L87 Difference]: Start difference. First operand 12684 states and 18320 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)